Coexistent working mode establishment method, user equipment, base station and system

ABSTRACT

The present invention discloses a user equipment and a communication system. The user equipment configured in a first communication system comprises: a receiver for receiving pre-configured information for co-existence working mode from a base station in the first communication system; a processor for generating a mode establishing request for indicating a co-existence problem experienced by the user equipment and providing assistance information for co-existence working mode in which the user equipment performs a first communication with the base station of the first communication system and performs a second communication with an apparatus in a second communication system which is different from the first communication system; and a transmitter for transmitting the mode establishing request to the base station in the first communication system.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of U.S. application Ser. No.13/850,816, filed Mar. 26, 2013, now pending, which is a continuation ofPCT Application No. PCT/CN2010/077411, filed on Sep. 28, 2010, thecontents of which are herein wholly incorporated by reference.

FIELD OF THE INVENTION

The disclosure relates to a wireless communication field, in particularto a method for establishing a co-existence working mode in which a userequipment in a first communication system performs a first communicationwith a base station in the first communication system and performs asecond communication with an apparatus in a second communication systemwhich is different from the first communication system in atime-division manner, and a base station, a user equipment and a systemwhich use this method.

BACKGROUND OF THE INVENTION

As the rapid development of wireless communication system, a userequipment such as a mobile phone and the like (also referred to terminalapparatus) plays a more and more important role in people's living.Functions other than the communication function in the user equipment,for example, access to a WLAN (Wireless Local Area Network) by utilizingthe user equipment, have been used more and more. In addition, in orderto facilitate the communication link and data exchange performed by theuser equipment and another apparatus, interfaces such as infrared,Bluetooth, USE and the like have been becoming standard configurationsof the user equipment. In particular, a Bluetooth earphone has been usedmore and more widely. The WLAN system, the Bluetooth system and the likeall work in the ISM (Industrial, Scientific and Medical) frequency band.For example, the frequency band of 2400 MHz-2483.5 MHz is one of theinternational general ISM frequency bands, and is also one of the mostcommon ISM frequency bands.

In case that the frequency band on which the communication between theuser equipment and a corresponding base station is based is close to ora multiple of the frequency band on which the communication between theuser equipment and another apparatus is based, such two communicationsmay interfere with each other. For example, the wireless communicationsystem LTE (Long Term Evolution) system is one of the super 3G (BeyondIMT-2000) systems. According to the LTE series standards [36.101], LTEsystem may work in several frequency bands. In these LTE workingfrequency bands, some frequency bands are immediately adjacent to theISM frequency bands, such as the frequency band 40 for deploying a LTETDD (Time Division Duplexing) system, 2300 MHz-2400 MHz; and thefrequency band 7 for deploying a LTE FDD (Frequency Division Duplexing)system, 2500 MHz-2570 MHz for uplink and 2620 MHz-2670 MHz for downlink.In these LTE frequency bands, multiples of some frequency bands are alsoadjacent to the GPS (Global Positioning System) system, such as thefrequency band 13 for deploying a LTE FDD system, 777 MHz-787 MHz foruplink and 746 MHz-756 MHz for downlink; and the frequency band 14 fordeploying a LTE FDD system, 788 MHz-798 MHz for uplink and 758 MHz-768MHz for downlink. If a LTE user equipment works in above frequency bandswhile the WLAN system or the Bluetooth system on the user equipment isat activated status, the LTE system and the ISM system (WLAN system, theBluetooth system and the like) in the user equipment may interfere witheach other due to adjacent frequency band leakage, and even result incommunication failure due to an extremely high code error rate. If theGPS system on the user equipment is activated at the same time, the GPSsystem may be interfered with by the LTE system and can not worknormally.

The conventional method for solving such issue is to employ higherperformance transmitting filter in the transmitting terminal of the userequipment which communicates with the base station and/or in thetransmitting terminal of the user equipment which communicates withanother apparatus to reduce the adjacent frequency band leakage and/orsuppress the harmonic frequency interference. The disadvantage is thatsuch method may largely increase the cost of the user equipment.

SUMMARY OF THE INVENTION

Some embodiments of the disclosure provide a method for establishing aco-existence working mode, by which a co-existence working mode in whicha user equipment in a first communication system performs a firstcommunication with a base station in the first communication system andperforms a second communication with an apparatus in a secondcommunication system which is different from the first communicationsystem in a time-division manner can be established quickly. Someembodiments of the disclosure also provide a base station, a userequipment and a system which use this method.

According to an aspect of the disclosure, it is provided a method forestablishing a co-existence working mode comprising: receiving, by abase station of a first communication system from a user equipment inthe first communication system, a mode establishing request forrequesting to establish a co-existence working mode; encapsulatingconfiguration information of a co-existence working mode allowed to beutilized by the user equipment in an establishing response message;transmitting the establishing response message to the user equipment;and receiving a message indicating whether configuration of theco-existence working mode has been completed fed back from the userequipment.

According to another aspect of the disclosure, it is provided a methodfor establishing a co-existence working mode comprising: transmitting,by a user equipment of a first communication system to a base station inthe first communication system, a mode establishing request forrequesting to establish a co-existence working mode; receiving anestablishing response message comprising configuration information of aco-existence working mode allowed to be utilized by the user equipmentfed back from the user equipment; configuring the co-existence workingmode according to the configuration information; and feeding back amessage indicating whether configuration of the co-existence workingmode has been completed to the base station.

According to another aspect of the disclosure, it is provided a basestation. The base station is configured in a first communication systemand comprises: a receiving device for receiving, from a user equipmentin the first communication system, a mode establishing request forrequesting to establish a co-existence working mode; a control devicefor encapsulating configuration information of a co-existence workingmode allowed to be utilized by the user equipment in an establishingresponse message; and a transmitting device for transmitting theestablishing response message to the user equipment. The receivingdevice is further used to receive a message indicating whetherconfiguration of the co-existence working mode has been completed fedback from the user equipment.

According to another aspect of the disclosure, it is provided a userequipment. The user equipment is configured in a first communicationsystem and comprises: an information processing device for generating amode establishing request for requesting to establish a co-existenceworking mode; a transmitting device for transmitting the modeestablishing request to a base station in the first communicationsystem; and a receiving device for receiving an establishing responsemessage comprising configuration information of a co-existence workingmode allowed to be utilized by the user equipment fed back from the basestation, wherein the information processing device is further used toconfigure the co-existence working mode according to the configurationinformation. The transmitting device is further used to feed back amessage indicating whether configuration of the co-existence workingmode has been completed to the base station.

According to another aspect of the disclosure, it is provided acommunication system comprising the base station and the user equipmentas described above.

In addition, the embodiments of the disclosure also provide a computerprogram for achieving the methods as described above.

According to another aspect of the disclosure, it is provided a userequipment configured in a first communication system, comprising: areceiver configured to receive pre-configured information forco-existence working mode from a base station in the first communicationsystem; a processor configured to generate a mode establishing requestfor indicating a co-existence problem experienced by the user equipmentand providing assistance information for co-existence working mode inwhich the user equipment performs a first communication with the basestation of the first communication system and performs a secondcommunication with an apparatus in a second communication system whichis different from the first communication system; and a transmitterconfigured to transmit the mode establishing request to the base stationin the first communication system; and wherein the receiver is furtherconfigured to receive, from the base station, an establishing responsemessage comprising configuration information of a co-existence workingmode allowed to be utilized by the user equipment, the processor isfurther configured to configure the co-existence working mode accordingto the configuration information, and the transmitter is furtherconfigured to feedback, to the base station, a message indicatingwhether configuration of the co-existence working mode has beencompleted, and wherein the pre-configured information of theco-existence working mode indicates whether the user equipment can denyuplink transmission of the first communication system.

According to another aspect of the disclosure, it is provided acommunication system, comprising: a base station including a controldevice, configured to pre-configure information for co-existence workingmode, and a receiving device, configured to receive, from a userequipment in a first communication system, a mode establishing requestfor indicating a co-existence problem experienced by the user equipmentand providing assistance information for co-existence working mode inwhich the user equipment performs a first communication with the basestation and performs a second communication with an apparatus in asecond communication system which is different from the firstcommunication system, a control device, configured to encapsulateconfiguration information of a co-existence working mode allowed to beutilized by the user equipment into an establishing response message,and a transmitting device, configured to transmit the pre-configuredinformation for co-existence working mode and the establishing responsemessage to the user equipment, wherein the receiving device is furtherconfigured to receive a message indicating whether configuration of theco-existence working mode has been completed fed back from the userequipment, and wherein the pre-configured information of theco-existence working mode indicates whether the user equipment can denyuplink transmission of the first communication system; and the userequipment including a receiving device, configured to receive thepre-configured information for co-existence working mode from the basestation in the first communication system, a information processingdevice, configured to generate a mode establishing request forindicating the co-existence problem experienced by the user equipmentand providing the assistance information for the co-existence workingmode in which the user equipment performs a first communication with abase station of the first communication system and performs a secondcommunication with the apparatus in the second communication systemwhich is different from the first communication system, and atransmitting device, configured to transmit the mode establishingrequest to the base station in the first communication system.

In addition, the embodiments of the disclosure also provide a computerprogram product at least in a form of computer readable medium on whicha computer program code for achieving the methods as described above isrecorded.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and advantages of the disclosuremay be understood more easily by referring to description of theembodiments of the disclosure in conjunction with the Drawings.Components in the Drawings are not drawn in ratio, and are only forillustrating principle of the disclosure. To show and describe someportions of the disclosure, corresponding sections in the Drawings maybe enlarged, that is, corresponding sections are made larger than othercomponents in the example device actually manufactured according to thedisclosure. In the Drawings, the same or similar technical feature orcomponent is represented by the same or similar reference sign.

FIG. 1 is a schematic diagram illustrating the situation of performing afirst communication of a user equipment with a base station and a secondcommunication of the user equipment with another apparatus in atime-division manner;

FIG. 2 is a flowchart illustrating a method for establishing aco-existence working mode by a user equipment in a first communicationsystem according to an embodiment of the disclosure;

FIG. 3 is a flowchart illustrating a method for establishing theco-existence working mode by a base station in the first communicationsystem, which corresponds to the method of FIG. 2, according to anembodiment of the disclosure;

FIG. 4 is a flowchart illustrating a method for establishing theco-existence working mode by the base station in the first communicationsystem according to another embodiment of the disclosure;

FIG. 5 is a flowchart illustrating a method for establishing theco-existence working mode by the user equipment in the firstcommunication system, which corresponds to the method of FIG. 4,according to another embodiment of the disclosure;

FIGS. 6A and 6B are schematic diagrams illustrating an example of themethod for establishing the co-existence working mode according to thedisclosure;

FIG. 7 is a schematic diagram illustrating a method for re-configuringthe co-existence working mode according to an embodiment of thedisclosure;

FIG. 8 is a schematic diagram illustrating a method for re-configuringthe co-existence working mode according to another embodiment of thedisclosure;

FIG. 9 is a schematic diagram illustrating a method for suspending theco-existence working mode according to an embodiment of the disclosure;

FIG. 10 is a schematic diagram illustrating a method for restarting theco-existence working mode according to an embodiment of the disclosure;

FIG. 11 is a schematic diagram illustrating a method for terminating theco-existence working mode according to an embodiment of the disclosure;

FIG. 12 is a schematic diagram illustrating a method for terminating theco-existence working mode according to another embodiment of thedisclosure;

FIG. 13 is a block diagram illustrating a user equipment according to anembodiment of the disclosure;

FIG. 14 is a block diagram illustrating a base station according to anembodiment of the disclosure; and

FIG. 15 is an example block diagram illustrating a structure of computerfor implementing the methods and apparatuses according to thedisclosure.

DETAILED DESCRIPTION OF THE INVENTION

The embodiments of the present disclosure are discussed hereinafter inconjunction with the Drawings. Elements and features described in oneDrawing or one embodiment of the present disclosure may be combined withelements and features described in one or more other Drawings orembodiments. It shall be noted that representation and description ofcomponents and processes unrelated to the present disclosure and wellknown to one of ordinary skill in the art are omitted in the Drawingsand the Description for the purpose of clearness.

In a user equipment of a wireless communication system, there may be twocommunications performed simultaneously, in which one is thecommunication performed between the user equipment and a base station(for the purpose of convenience, hereinafter this communication isreferred to first communication, and this communication system isreferred to main communication system or first communication system),and the other is the communication performed between the user equipmentand another apparatus (for example, an AP (Access Point) of a WLANsystem, an apparatus of a Bluetooth system, an apparatus of a GPS systemor the like) (for the purpose of convenience, hereinafter thiscommunication is referred to second communication, and the relatedcommunication system is referred to interfering system or secondcommunication system). The frequency bands in which the firstcommunication system and the second communication system work may beadjacent to each other or have a multiple relationship (such as LTEcommunication system and ISM communication system, LTE communicationsystem and GPS communication system, and the like). In this case, thereis a situation that these two communication systems interfere with eachother due to adjacent channel leakage and/or harmonic frequencyinterference.

The inventor of the disclosure has recognized that the firstcommunication and the second communication may be performed in atime-division manner in order to avoid such interference. FIG. 1 is aschematic diagram illustrating the situation of performing the firstcommunication and the second communication in a time-division manner. Asshown in FIG. 1, in time domain, the first communication system and thesecond communication system work in a time-division manner. In anotherwords, in a time-division manner, in a period during which the userequipment performs the first communication with an apparatus of thefirst communication system, the second communication with an apparatusof the second communication system is inhibited, and vice versa. In thedisclosure, the working mode in which two or more communication systemspresent on the same user equipment, that is, the user equipment performsthe first communication with a base station in the first communicationsystem and performs the second communication with an apparatus in atleast one second communication system which is different from the firstcommunication system by utilizing different time resources, is referredto co-existence working mode. According to specific types of the maincommunication system and the interfering system, a plurality ofco-existence working modes may be set to apply to these types. Forexample, one or more co-existence working modes based on a time-divisionmanner may be set, and these modes based on a time-division manner mayhave different time resource allocation schemes.

The embodiments of the disclosure disclose a method for establishing theco-existence working mode as described above, and a base station, a userequipment and a system which use this method.

FIG. 2 illustrates a flow of a method for establishing the co-existenceworking mode by the user equipment in the first communication systemaccording to an embodiment of the disclosure.

As shown in FIG. 2, the method may comprise steps 203, 209, 213, and215.

Specifically, at step 203, the user equipment transmits a modeestablishing request for entering the co-existence working mode to thebase station when there is a need to enter the co-existence working mode(for example, the interfering system is detected). At step 209, the userequipment receives an establishing response message includingconfiguration information of the co-existence working mode allowed to beentered by the user equipment fed back from the base station.Thereafter, at step 213, the user equipment configures the co-existenceworking mode according to the configuration information obtained byanalyzing the establishing response message, that is, sets correspondingcomponents (such as a device for performing the first communication anda device for performing the second communication) in the user equipmentaccording to the configuration information. After completing theconfiguration of the co-existence working mode, the user equipment mayfeed back a configuration completing message indicating whetherconfiguration of the co-existence working mode has been completedsuccessfully to the base station (as shown in step 215). Aftercompleting the configuration of the co-existence working mode, the userequipment may report the configuration condition of the co-existenceworking mode to the base station, which may help the base station tofully understand the working state of the user equipment while mayeffectively avoid the occurrence of the situation that the userequipment fails to configure the co-existence working mode and the basestation does not know this and start the co-existence working mode.

FIG. 3 illustrates a flow of the method for establishing theco-existence working mode by a base station, which corresponds to themethod of FIG. 2.

As shown in FIG. 3, the method may comprise steps 303, 307, 309, and315.

Specifically, at step 303, the base station receives a mode establishingrequest for establishing the co-existence working mode transmitted fromthe user equipment. Thereafter, at step 307, the base station generatesa response to the mode establishing request, which is referred toestablishing response message, in which the configuration information ofthe co-existence working mode allowed to be utilized by the userequipment is encapsulated. At step 309, the base station transmits theestablishing response message to the user equipment. At step 315, thebase station receives a configuration completing message indicatingwhether configuration of the co-existence working mode has beencompleted successfully fed back from the user equipment, therebyunderstand whether the user equipment successfully completes theconfiguration of the co-existence working mode.

With the method shown in FIG. 2 or 3, when detecting an interferingsystem, the user equipment in the first communication system may enterthe co-existence working mode quickly.

FIG. 4 illustrates a schematic flow of a method for establishing theco-existence working mode by the base station of the first communicationsystem according to another embodiment of the disclosure. The methodshown in FIG. 4 is different from the above embodiment in that afterreceiving the mode establishing request for establishing theco-existence working mode of the user equipment, the base station firstjudges whether to allow to enter the co-existence working mode accordingto current operation condition of the first communication network.

As shown in FIG. 4, the method begins at step 403. At step 403, the basestation receives a mode establishing request for establishing theco-existence working mode transmitted from the user equipment.Thereafter, at step 405, the base station judges whether to allow toenter the co-existence working mode according to current operationcondition of the system. For example, the base station may make thejudgment according to operation condition of the current cell (such ascurrent use condition of resources and the like) and working conditionof the user equipment (such as current service of the user equipment andthe like). If the base station judges that the user equipment is allowedto enter the co-existence working mode, the process proceeds to step407, otherwise, the process turns to step 408.

At step 407, the base station generates a establishing response message,in which the configuration information of the co-existence working modeallowed to be utilized by the user equipment is encapsulated. At step409-1, the base station transmits the establishing response message tothe user equipment. At step 415, the base station receives aconfiguration completing message indicating whether configuration of theco-existence working mode has been completed fed back from the userequipment, thereby understand whether the user equipment completes theconfiguration of the co-existence working mode.

At step 408, the base station encapsulates information indicating toreject the user equipment to enter the co-existence working mode in theestablishing response message, and then transmits it to the userequipment at step 409-2.

FIG. 5 illustrates a schematic flow of a method for establishing theco-existence working mode by the user equipment which corresponds to themethod of FIG. 4.

As shown in FIG. 5, the method begins at step 503. Step 503 is similarto step 403 shown in FIG. 4, that is, the user equipment transmits amode establishing request for entering the co-existence working mode tothe base station when there is a need to enter the co-existence workingmode (for example, the interfering system is detected). At step 509, theuser equipment receives an establishing response message fed back fromthe base station. Thereafter, at step 510, the user equipment analysesthe establishing response message and judge whether it is allowed toenter the co-existence working mode according to the content of theresponse message. If the response message includes informationindicating to reject the user equipment to enter the co-existenceworking mode as described above, the user equipment does not enter theco-existence working mode, otherwise, at step 513, the user equipmentconfigures the co-existence working mode according to the configurationinformation obtained by analyzing the establishing response message,that is, sets corresponding components (such as a device for performingthe first communication and a device for performing the secondcommunication) in the user equipment according to the configurationinformation. After completing the configuration of the co-existenceworking mode, the user equipment may feed back a configurationcompleting message indicating whether configuration of the co-existenceworking mode has been completed successfully to the base station (asshown in step 515).

Compared with the method of FIG. 2 or 3, the method of FIG. 4 or 5 isrelatively complex, and thus need more time to process. However, thebase station may judge whether to enter the co-existence working modeaccording to actual operation condition of the system, and thus thismethod can guarantee the normal operation of the main communicationsystem (that is, the first communication system).

As an example, the mode establishing request generated by the userequipment may only includes information for informing the base stationthat the user equipment needs to use the co-existence working mode. Inthis case, the mode establishing request may only includes 1 bit ormore. After receiving the establish request, the base station mayimmediately understand that the user equipment needs to enter theco-existence working mode, thereby allow to feed back the configurationinformation of the co-existence working mode allowed to be utilized bythe user equipment to the user equipment.

As another example, the mode establishing request may includes otherinformation. For example, the user equipment may encapsulate informationabout type and/or service of the interfering system into the modeestablishing request. For example, the user equipment may also selectconfiguration information of co-existence working mode according to theinterfering system and operation condition itself, and encapsulateinformation indicating configurations recommended to use into the modeestablishing request. The co-existence working mode may be determinedbased on the information, which may help the base station to select themost applicable co-existence working mode for the interfering systemwhile guarantee the normal operation of the main communication system.In these cases, the mode establishing request may include a plurality ofbits. As a specific example, the mode establishing request may includeone or more of the following information:

-   -   type of the interfering system; such as information about        whether the interfering system is a GPS system or an ISM system,        which ISM system the interfering system is, and the like;    -   service of the interfering system; using WLAN as an example,        services such as web page browse, uploading and downloading,        online game, and the like may need different time slot length        and different frequency band; using Bluetooth earphone as an        example, services such as talking, standby, music playing, and        the like may also need different time slot length and different        frequency band; the information may cause the base station to        select and allocate the most applicable transmitting resource        for the service;    -   co-existence working mode recommended by the user equipment; for        example, the user equipment may encapsulate the recommended        configuration information into the mode establishing request;        for example, if one or more co-existence working modes and        configuration information for each co-existence working mode are        set in the first communication system (for example, the        information may be preset in the user equipment by manufacturer        according to standards of the first communication system before        delivery, or preset in the user equipment by network operator        according to standards of the first communication system), the        user equipment may encapsulate information of the selected        co-existence working mode (such as sequence number) as indicated        by user into the mode establishing request.

FIGS. 6A and 6B illustrate an example of establishing the co-existenceworking mode, in which FIG. 6A illustrates an information delivery andoperation flow in case that the base station allows the user equipmentto enter the co-existence working mode, while FIG. 6B illustrates aninformation delivery and operation flow in case that the base stationrejects the user equipment to enter the co-existence working mode.

As shown in FIGS. 6A and 6B, at step 601, the user equipment detectsthat there is an interfering system, and determines to request forentering a co-existence working mode to the base station. In thisexample, the user equipment may select the co-existence working modeaccording to operation conditions of the interfering system and itself.Then at step 602 shown in FIGS. 6A and 6B, information about theco-existence working mode recommended by the user equipment (in casethat the manufacturer of the user equipment or the operator of the firstcommunication system presets one or more co-existence working modes inthe user equipment, the information may be the sequence number of theco-existence working mode recommended by the user equipment. Or, theinformation may be recommended configuration information of theco-existence working mode) is encapsulated into a mode establishingrequest. The user equipment may also encapsulate information about atype and/or service of the interfering system and the like into the modeestablishing request. Then the user equipment transmits the modeestablishing request to the base station (step 603 shown in FIGS. 6A and6B).

At step 605 shown in FIGS. 6A and 6B, the base station judges whether toallow the user equipment to enter a co-existence working mode accordingto operation condition of the first communication system (such asoperation condition of the current cell (such as the current resourceusage condition and the like) and working condition of the userequipment (such as the current service of the user equipment and thelike) and the like). If the base station judges to allow the userequipment to enter the co-existence working mode (step 605 shown in FIG.6A), the process proceeds to steps 606 and 607 shown in FIG. 6A,otherwise (step 605 shown in FIG. 6A), the process turns to step 607Bshown in FIG. 6B.

Now referring to FIG. 6A, at steps 606 and 607, the base station selectsa co-existence working mode for the user equipment and generates a modeconfiguration message. In case that the received mode establishingrequest includes a type and/or service of the interfering system, thebase station may select an applicable co-existence working mode for theuser equipment according to the type and/or service of the interferingsystem and the current operation condition of the system and service ofthe user equipment in the first communication system. In case that thereceived mode establishing request does not include a type and/orservice of the interfering system, the base station may select anapplicable co-existence working mode for the user equipment according tothe current operation condition of the first communication system andservice of the user equipment in the first communication system. In casethat the mode establishing request includes a co-existence working moderecommended by the user equipment, the base station may judges whetherthe co-existence working mode recommended by the user equipment may beused according to the current operation condition of the system. If so,information indicating to allow the user equipment to use the moderecommended by itself is encapsulated into the mode configurationmessage; if not, the base station selects a co-existence working modefor the user equipment and encapsulates configuration information intothe mode configuration message (step 607 shown in FIG. 6A). Then thebase station transmits the mode configuration message to the userequipment (step 609 shown in FIG. 6A). The user equipment determineswhether the base station allows it to enter a co-existence working modeaccording to the mode configuration message (step 610), and configuresthe co-existence working mode according to the configuration informationas indicated in the message (step 613) to enter the co-existence workingmode. After completing configuration of the co-existence working mode,the user equipment feeds back a mode configuration completing messageindicating whether configuration of the co-existence working mode hasbeen completed successfully to the base station (step 615). Afterreceiving the mode configuration completing message, the base stationmay understand whether the user equipment has configured theconfiguration successfully.

As a specific example, the base station may also encapsulate informationindicating a start delay of the co-existence working mode into the modeconfiguration message (step 607). The user equipment may determine thetime to start the co-existence working mode according to the start delayand the time at which the user equipment transmits a confirmation signal(such as an ACK signal) indicating that the user equipment has receivedthe mode configuration message successfully to the base station (step611). The base station may determine the time to start the co-existenceworking mode according to the time of receiving a confirmation signal(such as an ACK signal) indicating that the user equipment has receivedthe mode configuration message successfully fed back from the userequipment and the start delay (not shown). As another specific example,the user equipment may determine the time to start the co-existenceworking mode according to the start delay and the time at which the userequipment receives a confirmation signal (such as an ACK signal)indicating that the base station has received the mode configurationcompleting message successfully transmitted from the base station side.The base station may determine the time to start the co-existenceworking mode according to the time of transmitting a confirmation signal(such as an ACK signal) indicating that the base station has receivedthe mode configuration completing message successfully transmitted tothe user equipment and the start delay (not shown).

In conversion from a working mode to another working mode, after a newworking mode starts, there may be data of previous working mode,transmission of which has been started but not been completed, and/ordata of previous working mode, which has been scheduled (such as hasbeen allocated with transmission resource) but transmission of which hasnot been started. For example, when entering the co-existence workingmode, there may be uplink or downlink data of previous working mode,transmission of which has been started but not been completed, orinformation of previous working mode, which has been scheduled but notbeen transmitted. The previous working mode for transmitting the dataand information may conflict with data transmission in the co-existenceworking mode (including data transmissions of the first communicationsystem and the second communication system). As such, after terminatingthe co-existence working mode, there may also be some uplink or downlinkdata which has not been transmitted successfully and/or informationwhich has been scheduled but not been transmitted and the like. If suchdata and information is still transmitted according to the timingrelationship in the co-existence working mode after the co-existenceworking mode has been terminated, they may conflict with data andinformation transmitted in next working mode. For the purpose ofsimplicity, hereinafter the data (including information of originalworking mode which has been scheduled but not been transmitted and dataof original working mode transmission of which has been started but notbeen completed) is referred to “working mode transition time data”, andsome exemplary methods for processing this working mode transitionperiod data will be given.

In a first exemplary method, after entering a new working mode, theremaining working mode transition time data of previous working mode isdiscarded, or transmission thereof is terminated. The data may berescheduled and retransmitted according to the new working mode. Forexample, after entering a co-existence working mode, the transmission ofinformation of the previous working mode which has been scheduled butnot been transmitted is terminated, and data of the previous workingmode transmission of which is in progress but not has been completed isdiscarded. After entering the co-existence working mode, the data may berescheduled and retransmitted according to the co-existence workingmode. As such, after terminating the co-existence working mode, thetransmission of information of the co-existence working mode which hasbeen scheduled but not been transmitted is terminated, and data of theco-existence working mode transmission of which is in progress but nothas been completed is discarded. After switching to next working mode(such as a normal working mode or another co-existence working mode),the data may be rescheduled and retransmitted according to the normalworking mode or the another co-existence working mode.

In a second exemplary method, after entering a new working mode, atransition time is set, in which transmission of the remaining workingmode transition time data is completed according to previous workingmode. For example, after entering a co-existence working mode, atransition time is set, in which the transmission of the remainingworking mode transition time data is completed according to originalworking mode (such as a normal working mode). As such, after terminatingthe co-existence working mode, a transition time may also be set. Whenterminating the co-existence working mode (such as after switching tothe normal working mode or entering another co-existence working mode),transmission of the working mode transition time data (includinginformation of original working mode which has been scheduled but notbeen transmitted and data of original working mode transmission of whichhas been started but not been completed) is completed according to theoriginal working mode (i.e., the original co-existence working mode).Both the transition time after entering the co-existence working modeand the transition time after terminating the co-existence working modemay be set at the same time, or, one of them may be separately set.

In a third exemplary method, after entering a new working mode, thetransmission and/or retransmission of the remaining working modetransition time data is resumed with transmission resource in the newworking mode. For example, time resource allocation in the new workingmode may have a correspondence with that in previous working mode. Inthis case, after entering the new working mode, transmission of the datamay not be terminated, and transmission or retransmission thereof may beconducted by utilizing time resource in the new working modecorresponding to that in the previous working mode. For example, afterentering a co-existence working mode, transmission and retransmission ofthe working mode transition time data both are conducted according tocontrol mapping relation of the time resource in the co-existenceworking mode. As such, after terminating the co-existence working mode,transmission and retransmission of the working mode transition time databoth are conducted according to control mapping relation of the timeresource in next working mode (a normal working mode or a anotherco-existence working mode).

In an example, the mode configuration message transmitted by the basestation to the user equipment may also include information indicatingmethod of processing the working mode transition time data. Theinformation may indicate how to process the working mode transition timedata, for example, may indicate which one of the above three methodswill be used. The base station may encapsulate the information into themode configuration message (step 607). After receiving the modeconfiguration message, the user equipment may determine method ofprocessing the remaining working mode transition time data in previousworking mode according to the configuration message (step 612), andprocess the working mode transition time data according to the method.

As a specific example, the mode configuration message transmitted by thebase station to the user equipment may also include information abouttransition time of co-existence working mode (that is, the above secondmethod is used, and the information is a specific example of theinformation indicating method of processing the working mode transitiontime data). Herein, the transition time of the co-existence working moderefers to the time of maintaining the previous working mode afterentering the co-existence working mode and/or the time of maintainingthe co-existence working mode after terminating the co-existence workingmode. A transition time may be set for each co-existence working mode.For example, the information about a transition time of the co-existenceworking mode may include information indicating whether the co-existenceworking mode needs a transition time and/or information indicatingapplicable range of the transition time and/or length of the transitiontime. The information indicating the applicable range of the transitiontime is used to indicate that the transition time is applicable fortransition time of entering the co-existence working or transition timeof terminating the co-existence working mode or both. The base stationmay encapsulate the information about the transition time into the modeconfiguration message (step 607). After receiving the mode configurationmessage, the user equipment may judge whether the configuredco-existence working mode uses a transition time, applicable range ofthe transition time, and the like (step 612). If there is a applicabletransition time after entering the co-existence working mode (for thepurpose of simplicity, referred to first transition time), afterentering the co-existence working mode, the user equipment continues totransmit data using the previous working mode during the transition timeafter entering the co-existence working mode. Further, if there is aapplicable transition time after terminating the co-existence workingmode (for the purpose of simplicity, referred to second transitiontime), after terminating the co-existence working mode, the userequipment continues to transmit data using the previous working modeduring the transition time after entering the co-existence working mode.As described above, the first transition time and the second transitiontime may have the same value or different values.

In a specific example, start delay of co-existence working mode may beindicated by a number of subframes. In another specific example, thestart delay of the co-existence working mode may be indicated by asequence number. For example, if a system previously specifies aplurality of delay values (i.e., the numbers of delay subframes) andnumbers the delay values in a certain sequence (which is preset in theuser equipment and the base station by the manufacturer or theoperator), the base station may encapsulate sequence number ofcorresponding start delay into a establishing response message. Afterreceiving the establishing response message, the user equipment mayobtain the corresponding start delay.

The information indicating whether the co-existence working mode needs atransition time may be indicated by one or more bits. For example, whenthe information is indicated by one bit, bit 0 may indicate there is noneed for a transition time, that is, after entering a co-existenceworking mode, all data transmissions which are not completed aredirectly terminated and wait to be reallocated or transmitted afterentering the co-existence working mode; and bit 1 may indicated there isa need for a transition time. When the information is indicated by twobits, for example, one bit may indicate whether there is a need for atransition time before entering a co-existence working mode, and anotherbit may indicate whether there is a need for a transition time afterreceiving a command of terminating the co-existence working mode. Hereinnot all the cases will be listed.

The base station may select length of transition time of co-existenceworking mode according to operation condition of the system, which isnot defined herein. In another example, the length of transition timemay be indicated by one subframe. In this example, length of transitiontime after starting a co-existence working mode may equal to length oftransition time after terminating the co-existence working mode. Asanother specific example, the length of transition time may be indicatedby two subframes. That is, length of transition time after starting aco-existence working mode may not equal to length of transition timeafter terminating the co-existence working mode, both of which areindicated by two subframes respectively. In other specific examples, thelength of transition time may be indicated by a sequence number. Forexample, if the system specifies several possible or common lengths oftransition time (which are preset in the user equipment and the basestation by the manufacturer or the operator) and numbers them in acertain sequence, the base station may encapsulate sequence number of aselected length into a establishing response message.

In a specific example, the establishing response message transmitted bythe base station to the user equipment may include one or more of thefollowing information:

-   -   start delay of co-existence working mode;    -   time cycle of co-existence working mode (including working time        of the first communication and working time of the second        communication);    -   ratio of working time of the first communication system (such as        LTE system) to working time of the second communication system        in one time cycle;    -   working time of the first communication system (such as LTE        system) in one time cycle;    -   sequence number of co-existence working mode (in case that a        plurality of co-existence working modes and sequence numbers        thereof are preset for the base station and the user equipment        by the manufacturer and the operator);    -   information indicating method of processing the working mode        transition time data in previous working mode (for example,        indicating which one of the above three methods will be used);    -   information indicating applicable range of transition time        (after entering co-existence working mode, after terminating        co-existence working mode, or both); and    -   length of transition time.

Now referring to FIG. 6B, when the base station determines that the userequipment is not allowed to enter a co-existence working mode (step605), the base station generates a mode configuration rejecting messagefor informing the user equipment that it is not allowed to enter aco-existence working mode (step 607B) and transmits the modeconfiguration rejecting message to the user equipment (step 609B). Whenreceiving the rejecting message, the user equipment determines to notenter a co-existence working mode (step 610B).

The mode configuration rejecting message may include one or more bits.For example, in case of one bit, the bit may be set to 1 or 0 toindicate that the user equipment is rejected to start a co-existenceworking mode. Moreover, the base station may set a waiting time afterwhich the user equipment is allowed to request to enter a co-existenceworking mode next time, that is, may specify the time at least afterwhich the user equipment is allowed to transmit a next co-existenceworking mode establishing request. Specifically, the base station mayencapsulate information indicating a time interval after which the userequipment is allowed to transmit a next co-existence working modeestablishing request into the mode configuration rejecting message.After receiving the mode configuration rejecting message, if the userequipment transmit a next mode establishing request (which request toenter a co-existence working mode next time), such time interval shallbe waited.

As an example, establishing of a co-existence working mode may beconducted by utilizing the existing RRC (Radio Resource Control)singling during the initial random access process of the user equipmentto the base station.

Taking LTE communication system which is the first communication systemas an example, in case that the user equipment in the LTE system is inRRC_Idle condition or in transition time from the RRC_Idle condition toRRC_Connected condition, if the user equipment needs to enter aco-existence working mode (such as detects that there is an interferingsystem), the establishing process of the co-existence working mode maybe achieved by the initial random access.

As a specific example, the mode establishing request transmitted by theuser equipment to the base station may be carried based on Msg3 message(i.e., “RRCConnectionRequest” message) of LTE standards. For example,the user equipment may add information indicating to request toestablish a co-existence working mode to the Msg3 message and transmitit to the base station, thereby request to enter the co-existenceworking mode to the base station.

The establishing response message fed back by the base station to theuser equipment may be carried by utilizing “RRCConnectionSetup” messagein LTE standards. Specifically, after receiving the mode establishingrequest, the base station may add configuration information of aco-existence working mode allowed to be utilized by the user equipmentto the “RRCConnectionSetup” message and transmit the message to the userequipment.

The mode configuration completing message fed back by the user equipmentafter completing configuration of the co-existence working mode to thebase station may be carried by “RRCConnectionSetupComplete” message inLTE standards. The user equipment may add information indicating thatthe configuration of the co-existence working mode has been completed tothe message and transmit it to the base station.

In this way, once the user equipment enters the RRC_Connected condition,it may enter the co-existence working mode that has been configured.

In another example, in case that the user equipment has been in theRRC_Connected condition, if the user equipment needs to enter aco-existence working mode (such as detects that there is an interferingsystem), the establishing process of the co-existence working mode maybe conducted in RRC layer.

In a specific example, after entering the RRC_Connected condition, theuser equipment may establish the co-existence working mode by utilizingexisting RRC connection reconfiguration and reestablishing mode. Inanother specific example, after entering the RRC_Connected condition,the user equipment may establish the co-existence working mode bycreating a new working mode.

A specific example of establishing a co-existence working mode byutilizing existing RRC connection reconfiguration (RRC ConnectionReconfiguration) flow is described below. LTE system is taken as themain communication system in this specific example.

The mode establishing request transmitted by the user equipment to thebase station may be transmitted in a form of RRC command. For example, anew RRC command may be added based on LTE standards, which is indicatedby “RRC_CoEX_Establishment_Request”. The command may include, forexample, one or more of the following information:

RRC_CoEX_Establishment_Request:

InterferenceType:(TypeI TypeII TypeIII)

InterferenceSevice1:(TypeI, TypeII, TypeIII, TypeIV)

InterferenceSevice2:(TypeI, TypeII, TypeIII, TypeIV)

Mode:(mode1, mode2, mode3, . . . , modeN)

Period:(sf0, sf1, sf2, . . . , sfT)

Delay:(sf0, sf1, sf2, . . . , sfM)

LTETime:(sf0, sf1, sf2, . . . , sfL)

Guard:(Yes, No)

GuardTime:(sf10, sf15, sf20, sf25, sf30, sf35, sf40)

wherein, InterferenceType:(TypeI TypeII TypeIII) indicates type of theinterfering system detected by the user equipment, in which TypeI,TypeII, TypeIII may indicate that the interfering system is a WLAN, theinterfering system is a Bluetooth device, the interfering system is aGPS terminal, respectively. InterferenceType may be indicated by threeBoolean values. If value of corresponding type is 0, it means thatcorresponding system is not in activated condition; and if value ofcorresponding type is 1, it means that corresponding system is in theactivated condition. For example, when InterferenceType value is (101),it means that there are 2 interfering systems in activated condition,which are WLAN system and GPS system respectively.InterferenceSevice1:(TypeI, TypeII, TypeIII, TypeIV) indicates servicetype of WLAN system which is currently in activated condition, in whichTypeI, TypeII, TypeIII, TypeIV indicate web page browse, massdownloading or mass uploading, web game and other service respectively.InterferenceSevice2:(TypeI, TypeII, TypeIII, TypeIV) indicates servicetype of Bluetooth device which is currently in activated condition, inwhich TypeI, TypeII, TypeIII, TypeIV indicate idle condition, voiceservice (taking by utilizing a Bluetooth earphone), mass downlink (suchas listening music by utilizing a Bluetooth earphone) and other servicerespectively. Mode:(mode1, mode2, mode3, . . . , modeN) indicatessequence number of the co-existence working mode recommended by the userequipment, in which mode1, mode2, mode3, . . . , modeN indicate N (N≧1)co-existence working modes preset by system (preset in the userequipment or the base station by the manufacturer or the operator).Delay:(sf0, sf1, sf2, . . . , sfM) indicates length of start delayrecommended by the user equipment to the base station, in which sf0,sf1, sf2, . . . , sfM indicate 0 subframe, 1 subframe, 2 subframes, . .. , M (M≧1) subframes respectively. Period:(sf0, sf1, sf2, . . . , sfT)indicate length of co-existence cycle recommended by the user equipmentto the base station, in which sf0, sf1, sf2, . . . , sfT indicate 0subframe, 1 subframe, 2 subframes, . . . , T (T≧1) subframesrespectively. In case that the co-existence working mode is based ontime-division and the time-division is indicated in a form of timecycle, co-existence cycle may be defined, in which each co-existencecycle has working time of the first communication system (such as LTE)and working time of the second communication system (such as ISM).LTETime:(sf0, sf1, sf2, . . . , sfL) indicates length of working time ofLTE in one co-existence cycle recommended by the user equipment to thebase station, in which sf0, sf1, sf2, . . . , sfL indicate 0 subframe, 1subframe, 2 subframes, . . . , L (L≧1) subframes respectively.Guard:(Yes, No) indicates whether the user equipment recommends to use atransition time. GuardTime:(sf10, sf15, sf20, sf25, sf30, sf35, sf40)indicates length of the transition time recommended by the userequipment. For example, sf10, sf15, sf20, sf25, sf30, sf35, sf40indicate 10 subframes, 15 subframes, 20 subframes, 30 subframes, 35subframes, 40 subframes respectively; and GuardTime:(sf10, sf15, sf20,sf25, sf30, sf35, sf40) indicates that length of the transition timerecommended by the user equipment to the base station is 10 subframes,15 subframes, 20 subframes, 30 subframes, 35 subframes, or 40 subframes.

The establishing response message transmitted by the base station to theuser equipment may be carried based on RRCConnectionReconfigurationmessage of LTE standards. The message (indicated by RRC_CoEX_Config) mayinclude one or more of the following information:

RRC_CoEX_Config:

State:(accept, reject)

Mode:(mode1, mode2, mode3, . . . , modeN)

Delay:(sf0, sf1, sf2, . . . , sfM)

Period:(sf0, sf1, sf2, . . . , sfT)

LTETime:(sf0, sf1, sf2, . . . , sfL)

GuardIndicateRange:(1,2)

GuardMode:(None, typeI, typeII, typeIII, typeIV)

GuardTime:(sf10, sf15, sf20, sf25, sf30, sf35, sf40)

wherein, State:(accept, reject) indicates information of allowing orrejecting the user equipment to enter a co-existence working mode;Mode:(mode1, mode2, mode3, . . . , modeN) indicates sequence number ofthe co-existence working mode allowed by the base station to be used bythe user equipment, and mode1, mode2, mode3, . . . , modeN indicate N(N≧1) co-existence working modes preset by system (preset in the userequipment or the base station by the manufacturer or the operator).Delay:(sf0, sf1, sf2, . . . , sfM) indicates length of start delay ofthe co-existence working mode selected by the base station for the userequipment, in which sf0, sf1, sf2, . . . , sfM indicate 0 subframe, 1subframe, 2 subframes, . . . , M (M≧1) subframes respectively.Period:(sf0, sf1, sf2, . . . , sfT) indicate length of co-existencecycle selected by the base station for the user equipment, in which sf0,sf1, sf2, . . . , sfT indicate 0 subframe, 1 subframe, 2 subframes, . .. , T (T≧1) subframes respectively. LTETime:(sf0, sf1, sf2, . . . , sfL)indicates length of working time of LTE in one co-existence cycleselected by the base station for the user equipment.GuardIndicateRange:(1,2) indicate applicable range of the transitiontime. For example, 1 indicates that the transition time is onlyapplicable for transition process for entering a co-existence workingmode from other working mode (normal working mode or other co-existenceworking mode); 2 indicates the transition time is applicable not onlyfor transition process for entering a co-existence working mode fromother working mode, but also for transition process for entering otherworking mode from a co-existence working mode. GuardMode:(None, typeI,typeII, typeIII, typeIV) indicates method of processing the working modetransition time data selected by the base station for the userequipment. For example, None indicates that no action will be taken,that is, when entering a co-existence working mode, signaling and datain previous working mode which has been scheduled but transmission ofwhich has not been started and/or signaling and data in previous workingmode transmission of which has been started but not been completed istransmitted (according to the previous working mode) until they aretransmitted correctly or HARQ maximum retransmission times is reached.typeI is type I which indicates that when entering a co-existenceworking mode, all the signaling and data in previous working modetransmission of which has not been completed is stopped until afterentering the co-existence working mode, and then they are rescheduledand retransmitted according to timing relationship of the co-existenceworking mode (i.e., the first exemplary method of processing the workingmode transition time data as described above). typeII is type II whichindicates that when entering a co-existence working mode, subsequenttransmission of all the signaling and data transmission of which has notbeen completed is resumed according to timing relationship of theco-existence working mode (i.e., the third exemplary method ofprocessing the working mode transition time data as described above).typeIII is type III which indicates that during transition from perviousworking mode to a co-existence working mode or from the co-existenceworking mode to next working mode, a transition time is set (i.e., thesecond exemplary method of processing the working mode transition timedata as described above). GuardTime:(sf10, sf15, sf20, sf25, sf30, sf35,sf40) indicates length of the transition time selected by the basestation, in which sf10, sf15, sf20, sf25, sf30, sf35, sf40 indicate 10subframes, 15 subframes, 20 subframes, 30 subframes, 35 subframes, 40subframes respectively; and GuardTime:(sf10, sf15, sf20, sf25, sf30,sf35, sf40) indicates that the length of the transition time is 10subframes, 15 subframes, 20 subframes, 30 subframes, 35 subframes, or 40subframes.

The mode configuration completing message fed back by the user equipmentto the base station may be carried by utilizingRRCConnectionReconfigurationComplete message of LTE standards.

The mode configuration rejecting message transmitted by the base stationto the user equipment may be carried by utilizing RRCConnectionRejectmessage of LTE standards.

A specific example of establishing a co-existence working mode byutilizing a new RRC working flow (indicated by RRC_CoEX_Establishment)is described below. LTE system is also taken as the main communicationsystem in this specific example.

A new RRC command may be added to carry the mode establishing requesttransmitted by the user equipment to the base station, which isindicated by “RRC_CoEX_Establishment Request” and may include one ormore of the following information:

RRC_CoEX_Establishment Request:

InterferenceType:(TypeI TypeII TypeIII)

InterferenceSevice1:(TypeI, TypeII, TypeIII, TypeIV)

InterferenceSevice2:(TypeI, TypeII, TypeIII, TypeIV)

Mode:(mode1, mode2, mode3, . . . , modeN)

Period:(sf0, sf1, sf2, . . . , sfT)

Delay:(sf0, sf1, sf2, . . . , sfM)

LTETime:(sf0, sf1, sf2, . . . , sfL)

Guard:(Yes, No)

GuardTime:(sf10, sf15, sf20, sf25, sf30, sf35, sf40)

each of which is similar to that in the previous example and descriptionthereof will not be repeated.

A new RRC command may be added to carry the mode configuration messagefed back by the base station to the user equipment, which is indicatedby “RRC_CoEX_Configuration” and may include one or more of the followinginformation:

RRC_CoEX_Configuration:

State:(accept, reject)

Mode:(mode1, mode2, mode3, . . . , modeN)

Delay:(sf0, sf1, sf2, . . . , sfM)

Period:(sf0, sf1, sf2, . . . , sfT)

LTETime:(sf0, sf1, sf2, . . . , sfL)

GuardIndicateRange:(1,2)

GuardMode:(None, typeI, typeII, typeIII, typeIV)

GuardTime:(sf10, sf15, sf20, sf25, sf30, sf35, sf40)

each of which is similar to that in the previous example and descriptionthereof will not be repeated.

A new RRC command may be added to carry the mode configurationcompleting message fed back by the user equipment to the base station,which is indicated by “RRC_CoEX_Establishment complete_response” and mayinclude one or more of the following information:

RRC_CoEX_Establishment complete_response:

State:(success, fail)

FailReason:(reason0, reason1, . . . )

wherein, State:(success, fail) indicates whether the co-existenceworking mode has been configured successfully; and FailReason:(reason0,reason1, . . . ) indicates reason of configuration failure (when theco-existence working mode is not successful, the user equipment mayencapsulate such information into the fed back configuration completingmessage).

A new RRC command may be added to carry the mode configuration rejectingmessage fed back by the base station to the user equipment, which isindicated by “RRC_CoEX_Reject” and may include one or more of thefollowing information:

RRC_CoEX_Reject:

RetryDelayType:(sf10, sf15, sf20, sf25, sf30)

wherein, sf10, sf15, sf20, sf25, sf30 indicate 10 subframes, 15subframes, 20 subframes, 30 subframes, respectively; andRetryDelayType:(sf10, sf15, sf20, sf25, sf30) indicates that minimumtime interval selected by the base station for the user equipment toretransmit the co-existence working mode establishing request is 10subframes, 15 subframes, 20 subframes, or 30 subframes. That is, if theuser equipment wants to request to establish a co-existence working modenext time, the time of transmit next request shall be after the timeinterval.

Some examples of establishing a co-existence working mode by utilizingRRC layer signaling have been given above. It is understood that theabove examples are exemplary. For example, some specific signalingcontents have been shown schematically. In practical applications, it ispossible to make modifications, deletions according to the contents, andthe invention is not limited to these examples.

As another example, the mode establishing request transmitted by theuser equipment to the base station may also be transmitted in a form ofMAC (Media Access Control) command. For example, a new MAC controlelement (CE) may be added based on LTE standards, which is referred to“CoEX-MAC CE”. A new LCID value may be defined for the CoEX-MAC CE. Forexample, the LCID value may be “01011”.

Comparing with transmitting the mode establishing request by utilizingRRC layer, a co-existence working mode can be established by utilizingMAC layer signaling more quickly. In addition, since MAC layer signalingalso has corresponding HARQ flow, reliability of establishing signalingof co-existence working mode may be guaranteed well.

FIG. 7 is a schematic diagram illustrating a method for re-configuringthe co-existence working mode after establishing the co-existenceworking mode according to an embodiment of the disclosure. In theembodiment shown in FIG. 7, reconfiguration of the co-existence workingmode is triggered by the user equipment.

As shown in FIG. 7, after a co-existence working mode is establishedsuccessfully, if the user equipment needs to change the co-existenceworking mode (such as detects that the interfering system is changed),the user equipment may generates a reconfiguration request (step 721)for request the base station to re-configure the co-existence workingmode in order to be applicable for the changed interfering system.

The reconfiguration request may include one or more bits.

As an example, the reconfiguration request may include one bit, thevalue of which may be set to 1 or 0 to inform the base station that theuser equipment needs to re-configure the co-existence working mode.

In other examples, the reconfiguration request may include a pluralityof bits. Alternatively, the user equipment may encapsulate informationrelated to variation of the interfering system into the reconfigurationrequest (step 723) in order to provide support for decision of the basestation. Alternatively, the user equipment may also encapsulatereconfiguration information (such as configuration information of theco-existence working mode reselected by itself according to thevariation of the interfering system) recommended by itself forre-configuring the co-existence working mode into the reconfigurationrequest for reference by the base station. As a specific example, thereconfiguration request may include one or more of the followinginformation:

-   -   type of the current interfering system (such as information        about whether the interfering system is a GPS system or an ISM        system, which ISM system the interfering system is, and the        like);    -   service of the current interfering system (as for WLAN system,        web page browse, uploading and downloading service, and online        game may need different time slot length and different        frequency; as for Bluetooth earphone, talking, standby, and        music playing may need different time slot length and different        frequency);    -   configuration information or reconfiguration information of the        co-existence working mode recommended by the user equipment; for        example, the user equipment may encapsulate the recommended        configuration information into the reconfiguration request; for        example, if one or more co-existence working modes and        configuration information for each co-existence working mode are        set in the first communication system (for example, the        information may be preset in the user equipment by manufacturer        according to standards of the first communication system before        delivery, or preset in the user equipment by network operator        according to standards of the first communication system), the        user equipment may encapsulate information of the selected        co-existence working mode (such as sequence number) as indicated        by user into the reconfiguration request.

In an example, if the new co-existence working mode recommended by theuser equipment has only one or several different parameters from that ofthe current co-existence working mode, the user equipment may only needto encapsulate configuration information which is needed to be changed(such as some parameters which are needed to be changed) into thereconfiguration request as recommended reconfiguration information.

At step 724, the user equipment transmits the reconfiguration request tothe base station. After receiving the reconfiguration request, the basestation may generates a reconfiguration response message (step 728).Alternatively, before step 728, the base station may judge whether toallow the co-existence working mode reconfiguration request of the userequipment according to system operation condition and firstcommunication service of the user equipment (step 725). If not, areconfiguration rejecting message is transmitted to the user equipmentat step 726, which informs the user equipment that reconfiguration ofthe co-existence working mode is not allowed; if yes, the next judgmentis performed. Alternatively, if the reconfiguration request includesinformation indicating configuration information or reconfigurationinformation of the co-existence working mode recommended by the userequipment, the base station may judge whether to directly accept theconfiguration information or the reconfiguration information of theco-existence working mode recommended by the user equipment at step 727.If so, the base station encapsulates information indicating that theco-existence working mode recommended by the user equipment is allowedto be used into the reconfiguration response message at step 728; ifnot, the base station select other co-existence working mode for theuser equipment according to actual condition (such as the current cellcondition (such as the current resource usage condition) and/or the userequipment condition (such as the current service of the user equipment)and/or the variation of the interfering system), and encapsulateconfiguration information or reconfiguration information of the selectedco-existence working mode into the reconfiguration response message atstep 728. In an example, if the new co-existence working mode selectedby the base station for the user equipment has only one or severaldifferent parameters from that of the current co-existence working mode,the base station may only need to encapsulate configuration informationwhich is needed to be changed (such as some parameters which are neededto be changed) into the reconfiguration response message asreconfiguration information.

At step 729, the base station transmits the reconfiguration responsemessage to the user equipment.

After receiving the reconfiguration response message or thereconfiguration rejecting message, the user equipment judges whether thebase station allows to re-configure (step 730). If not, the processends; and if yes, the co-existence working mode is re-configuredaccording to the configuration information or the reconfigurationinformation in the reconfiguration response message (step 731).

After the reconfiguration is completed, the user equipment may transmita reconfiguration completing message to the base station (step 732),which includes information indicating whether reconfiguration of theco-existence working mode has been completed.

FIG. 8 is a schematic diagram illustrating a method for re-configuringthe co-existence working mode after establishing the co-existenceworking mode according to another embodiment of the disclosure. In theembodiment shown in FIG. 8, reconfiguration of the co-existence workingmode is triggered by the base station.

As shown in FIG. 8, after a co-existence working mode is establishedsuccessfully, if the base station needs to change the co-existenceworking mode (such as the base station detects that system operationcondition is changed), the base station may transmit a reconfigurationcommand to the user equipment (step 821) for requesting the base stationto re-configure the co-existence working mode in order to be applicablefor the variation of system operation. The reconfiguration commandincludes reconfiguration information for re-configuring the co-existenceworking mode such as configuration information of the co-existenceworking mode reselected by base station for the user equipment. In anexample, if the new co-existence working mode selected by the basestation for the user equipment has only one or several differentparameters from that of the current co-existence working mode, the basestation may only need to encapsulate configuration information which isneeded to be changed (such as some parameters which are needed to bechanged) into the reconfiguration request as recommended reconfigurationinformation and transmit it to the user equipment.

After receiving the reconfiguration command, the user equipmentre-configures the co-existence working mode according to thereconfiguration information in the command (step 822). After thereconfiguration is completed, the user equipment feeds backreconfiguration completing message to the base station (step 823), whichincludes information indicating whether reconfiguration of theco-existence working mode has been completed.

As a specific example, the reconfiguration response message or thereconfiguration command transmitted by the base station may includevalidation delay or validation time of reconfiguration. The userequipment may determine the time of validating the reconfigurationaccording to the validation delay or the validation time and the time oftransmitting the reconfiguration completing message. After receiving thereconfiguration completing message, the base station may determine thetime of validating the reconfiguration according to the time ofreceiving the reconfiguration completing message and the validationdelay or the validation time. In another example, the reconfigurationresponse message or the reconfiguration command transmitted by the basestation may not includes validation delay or validation time ofreconfiguration. After the base station receives the reconfigurationcompleting message, the reconfiguration of the co-existence working modeis validated immediately.

As another specific example, the reconfiguration response message or thereconfiguration command transmitted by the base station may also includeinformation indicating transition time. The base station may encapsulateinformation indicating whether to need a transition time and length ofthe transition time into the reconfiguration response message or thereconfiguration command. After receiving the reconfiguration responsemessage or the reconfiguration command, the user equipment may judgewhether there is a transition time. If so, the user equipment continuesto transmit data by using previous working mode or configurationinformation during the transition time after the reconfiguration isvalidated.

In a specific example, the reconfiguration response message or thereconfiguration command transmitted by the base station to the userequipment may include one or more of the following information:

-   -   validation delay of reconfiguration;    -   time cycle of the re-configured co-existence working mode        (including working time of the first communication and working        time of the second communication);    -   ratio of working time of the first communication system (such as        LTE system) to working time of the second communication system        in one time cycle;    -   working time of the first communication system (such as LTE        system) in one time cycle;    -   sequence number of the re-configured co-existence working mode        (in case that a plurality of co-existence working modes and        sequence numbers thereof are preset for the base station and the        user equipment by the manufacturer and the operator);    -   information indicating method of processing the working mode        transition time data in previous working mode (for example,        indicating which one of the above three methods will be used);    -   information indicating applicable range of transition time        (after the re-configured entering co-existence working mode,        after terminating the re-configured co-existence working mode,        or both); and    -   length of transition time.

In a specific example, the reconfiguration rejecting message transmittedby the base station to the user equipment may include one or more bits.For example, the reconfiguration rejecting message may include only onebit, value of which may be set to 1 or 0 to indicate that the request ofthe user equipment to re-configure the co-existence working mode isrejected. In other examples, the reconfiguration rejecting message mayinclude more than one bit. Alternatively, the base station mayencapsulate a waiting time after which the user equipment is allowed torequest to enter a co-existence working mode next time into thereconfiguration rejecting message, that is, may specify the time atleast after which the user equipment is allowed to transmit a nextreconfiguration request. After receiving the reconfiguration rejectingmessage, if the user equipment transmits a next reconfiguration request(which request to re-configure the co-existence working mode next time),such time interval shall be waited. Reconfiguration process of theco-existence working mode as described above may be conducted in RRClayer. In other words, each of the reconfiguration request, thereconfiguration rejecting message, the reconfiguration response message,the reconfiguration completing message, and the reconfiguration commandinvolved in reconfiguration may be a RRC command.

In a specific example, the co-existence working mode may bere-configured by utilizing existing RRC connection reconfiguration andreestablishing mode. In another specific example, the co-existenceworking mode may be re-configured by creating a new working mode.

A specific example of re-configuring the co-existence working mode byutilizing existing RRC connection reconfiguration (RRC ConnectionReconfiguration) flow is described below. LTE system is taken as themain communication system in this specific example.

A new RRC command may be added to carry the reconfiguration request,which is indicated by “RRC_CoEX_reconfiguration_request” and may includeone or more of the following information:

RRC_CoEX_reconfiguration_request:

InterferenceType:(TypeI TypeII TypeIII)

InterferenceSevice1:(TypeI, TypeII, TypeIII, TypeIV)

InterferenceSevice2:(TypeI, TypeII, TypeIII, TypeIV)

Mode:(mode1, mode2, mode3, . . . , modeN)

Period:(sf0, sf1, sf2, . . . , sfT)

Delay:(sf0, sf1, sf2, . . . , sfM)

LTETime:(sf0, sf1, sf2, . . . , sfL)

Guard:(Yes, No)

GuardTime:(sf10, sf15, sf20, sf25, sf30, sf35, sf40)

wherein, InterferenceType:(TypeI TypeII TypeIII) indicates type of theinterfering system detected by the user equipment, in which TypeI,TypeII, TypeIII may indicate that the interfering system is a WLAN, theinterfering system is a Bluetooth device, the interfering system is aGPS terminal, respectively. InterferenceType may be indicated by threeBoolean values. If value of corresponding type is 0, it means thatcorresponding system is not in activated condition; and if value ofcorresponding type is 1, it means that corresponding system is in theactivated condition. For example, when InterferenceType value is (101),it means that there are 2 interfering systems in activated condition,which are WLAN system and GPS system respectively.InterferenceSevice1:(TypeI, TypeII, TypeIII, TypeIV) indicates servicetype of WLAN system which is currently in activated condition, in whichTypeI, TypeII, TypeIII, TypeIV indicate web page browse, massdownloading or mass uploading, web game and other service respectively.InterferenceSevice2:(TypeI, TypeII, TypeIII, TypeIV) indicates servicetype of Bluetooth device which is currently in activated condition, inwhich TypeI, TypeII, TypeIII, TypeIV indicate idle condition, voiceservice (taking by utilizing a Bluetooth earphone), mass downlink (suchas listening music by utilizing a Bluetooth earphone) and other servicerespectively. Mode:(mode1, mode2, mode3, . . . , modeN) indicatessequence number of the re-configured co-existence working moderecommended by the user equipment, in which mode1, mode2, mode3, . . . ,modeN indicate N (N≧1) co-existence working modes preset by system(preset in the user equipment or the base station by the manufacturer orthe operator). Delay:(sf0, sf1, sf2, . . . , sfM) indicates length ofstart delay of the re-configured co-existence working mode recommendedby the user equipment to the base station, in which sf0, sf1, sf2, . . ., sfM indicate 0 subframe, 1 subframe, 2 subframes, . . . , M (M≧1)subframes respectively. Period:(sf0, sf1, sf2, . . . , sfT) indicatelength of co-existence cycle of the re-configured co-existence workingmode recommended by the user equipment to the base station, in whichsf0, sf1, sf2, . . . , sfT indicate 0 subframe, 1 subframe, 2 subframes,. . . , T (T≧1) subframes respectively. LTETime:(sf0, sf1, sf2, . . . ,sfL) indicates length of working time of LTE in one co-existence cyclerecommended by the user equipment to the base station, in which sf0,sf1, sf2, . . . , sfL indicate 0 subframe, 1 subframe, 2 subframes, . .. , L (L≧1) subframes respectively. Guard:(Yes, No) indicates whetherthe user equipment recommends to use a transition time. GuardTime:(sf10,sf15, sf20, sf25, sf30, sf35, sf40) indicates length of the transitiontime recommended by the user equipment. For example, sf10, sf15, sf20,sf25, sf30, sf35, sf40 indicate 10 subframes, 15 subframes, 20subframes, 30 subframes, 35 subframes, 40 subframes respectively; andGuardTime:(sf10, sf15, sf20, sf25, sf30, sf35, sf40) indicates that thelength of the transition time recommended by the user equipment to thebase station is 10 subframes, 15 subframes, 20 subframes, 30 subframes,35 subframes, or 40 subframes.

The reconfiguration response message transmitted by the base station tothe user equipment may be carried based on RRCConnectionReconfigurationmessage of LTE standards. The message (indicated byRRC_CoEX_reconfiguration) may include one or more of the followinginformation:

RRC_CoEX_reconfiguration:

State:(accept, reject)

Mode:(mode1, mode2, mode3, . . . , modeN)

Delay:(sf0, sf1, sf2, . . . , sfM)

Period:(sf0, sf1, sf2, . . . , sfT)

LTETime:(sf0, sf1, sf2, . . . , sfL)

GuardIndicateRange:(1,2)

GuardMode:(None, typeI, typeII, typeIII, typeIV)

GuardTime:(sf10, sf15, sf20, sf25, sf30, sf35, sf40)

wherein, State:(accept, reject) indicates information of allowing orrejecting the user equipment to re-configure the co-existence workingmode; Mode:(mode1, mode2, mode3, . . . , modeN) indicates sequencenumber of the re-configured co-existence working mode allowed by thebase station to be used by the user equipment, and mode1, mode2, mode3,. . . , modeN indicate N (N≧1) co-existence working modes preset bysystem (preset in the user equipment or the base station by themanufacturer or the operator). Delay:(sf0, sf1, sf2, . . . , sfM)indicates length of start delay of the re-configured co-existenceworking mode selected by the base station for the user equipment, inwhich sf0, sf1, sf2, . . . , sfM indicate 0 subframe, 1 subframe, 2subframes, . . . , M (M≧1) subframes respectively. Period:(sf0, sf1,sf2, . . . , sfT) indicate length of co-existence cycle selected by thebase station for the user equipment, in which sf0, sf1, sf2, . . . , sfTindicate 0 subframe, 1 subframe, 2 subframes, . . . , T (T≧1) subframesrespectively. LTETime:(sf0, sf1, sf2, . . . , sfL) indicates length ofworking time of LTE in one co-existence cycle selected by the basestation for the user equipment. GuardIndicateRange:(1,2) indicateapplicable range of the transition time. For example, 1 indicates thatthe transition time is only applicable for transition process from thecurrent co-existence working mode to the new co-existence working mode(the re-configured co-existence working mode); 2 indicates thetransition time is applicable not only for transition process from thecurrent co-existence working mode to the new co-existence working mode,but also for transition process for terminating the new co-existenceworking mode. GuardMode:(None, typeI, typeII, typeIII, typeIV) indicatesmethod of processing the working mode transition time data selected bythe base station for the user equipment. For example, None indicatesthat no action will be taken, that is, when entering the newco-existence working mode (the re-configured co-existence working mode),signaling and data in original co-existence working mode which has beenscheduled but transmission of which has not been started and/orsignaling and data in original co-existence working mode transmission ofwhich has been started but not been completed is transmitted (accordingto the original co-existence working mode) until they are transmittedcorrectly or HARQ maximum retransmission times is reached. typeI is typeI which indicates that when entering the new co-existence working mode,all the signaling and data in previous working mode transmission ofwhich has not been completed is stopped until after entering the newco-existence working mode, and then they are rescheduled andretransmitted according to timing relationship of the new co-existenceworking mode (i.e., the first exemplary method of processing the workingmode transition time data as described above). typeII is type II whichindicates that when entering the new co-existence working mode,subsequent transmission of all the signaling and data transmission ofwhich has not been completed is resumed according to timing relationshipof the new co-existence working mode (i.e., the third exemplary methodof processing the working mode transition time data as described above).typeIII is type III which indicates that during transition from thecurrent working mode to the new co-existence working mode or transitionof terminating the new co-existence working mode, a transition time isset (i.e., the second exemplary method of processing the working modetransition time data as described above). GuardTime:(sf10, sf15, sf20,sf25, sf30, sf35, sf40) indicates length of the transition time selectedby the base station, in which sf10, sf15, sf20, sf25, sf30, sf35, sf40indicate 10 subframes, 15 subframes, 20 subframes, 30 subframes, 35subframes, 40 subframes respectively; and GuardTime:(sf10, sf15, sf20,sf25, sf30, sf35, sf40) indicates that the length of the transition timeis 10 subframes, 15 subframes, 20 subframes, 30 subframes, 35 subframes,or 40 subframes.

The reconfiguration completing message fed back by the user equipment tothe base station may be carried by utilizingRRCConnectionReconfigurationComplete message of LTE standards.

The reconfiguration rejecting message transmitted by the base station tothe user equipment may be carried by utilizing RRCConnectionRejectmessage of LTE standards.

A specific example of re-configuring the co-existence working mode byutilizing a new RRC working flow (indicated by RRC_CoEX_Reconfiguration)is described below. LTE system is also taken as the main communicationsystem in this specific example.

A new RRC command may be added to carry the reconfiguration requesttransmitted by the user equipment to the base station, which isindicated by “RRC_CoEX_reconfiguration request” and may include one ormore of the following information:

RRC_CoEX_reconfiguration request:

InterferenceType:(TypeI TypeII TypeIII)

InterferenceSevice1:(TypeI, TypeII, TypeIII, TypeIV)

InterferenceSevice2:(TypeI, TypeII, TypeIII, TypeIV)

Mode:(mode1, mode2, mode3, . . . , modeN)

Period:(sf0, sf1, sf2, . . . , sfT)

Delay:(sf0, sf1, sf2, . . . , sfM)

LTETime:(sf0, sf1, sf2, . . . , sfL)

Guard:(Yes, No)

GuardTime:(sf10, sf15, sf20, sf25, sf30, sf35, sf40)

each of which is similar to that in the previous example and descriptionthereof will not be repeated.

A new RRC command may be added to carry the reconfiguration responsemessage fed back by the base station to the user equipment, which isindicated by “RRC_CoEX_reconfiguration” and may include one or more ofthe following information:

RRC_CoEX_reconfiguration:

State:(accept, reject)

Mode:(mode1, mode2, mode3, . . . , modeN)

Delay:(sf0, sf1, sf2, . . . , sfM)

Period:(sf0, sf1, sf2, . . . , sfT)

LTETime:(sf0, sf1, sf2, . . . , sfL)

GuardIndicateRange:(1,2)

GuardMode:(None, typeI, typeII, typeIII, typeIV)

GuardTime:(sf10, sf15, sf20, sf25, sf30, sf35, sf40)

each of which is similar to that in the previous example and descriptionthereof will not be repeated.

A new RRC command may be added to carry the reconfiguration completingmessage fed back by the user equipment to the base station, which isindicated by “RRC_CoEX_reconfiguration_complete_response” and mayinclude one or more of the following information:

RRC_CoEX_reconfiguration_complete_response:

State:(success, fail)

FailReason:(reason0, reason1, . . . )

wherein, State:(success, fail) indicates whether the co-existenceworking mode has been reconfigured successfully; andFailReason:(reason0, reason1, . . . ) indicates reason ofreconfiguration failure (when the co-existence working mode is notre-configured successfully, the user equipment may encapsulate suchinformation into the fed back reconfiguration completing message).

A new RRC command may be added to carry the reconfiguration rejectingmessage fed back by the base station to the user equipment, which isindicated by “RRC_CoEX_reconfiguration_reject” and may include one ormore of the following information:

RRC_CoEX_reconfiguration_reject:

RetryDelayType:(sf10, sf15, sf20, sf25, sf30)

wherein, sf10, sf15, sf20, sf25, sf30 indicate 10 subframes, 15subframes, 20 subframes, 30 subframes, respectively; andRetryDelayType:(sf10, sf15, sf20, sf25, sf30) indicates that minimumtime interval selected by the base station for the user equipment toretransmit the reconfiguration request is 10 subframes, 15 subframes, 20subframes, or 30 subframes. That is, if the user equipment wants torequest to re-configure the co-existence working mode next time, thetime of transmit next request shall be after the time interval.

Some examples of re-configuring the co-existence working mode byutilizing RRC layer signaling have been given above. It is understoodthat the above examples are exemplary. For example, some specificsignaling contents have been shown schematically. In practicalapplications, it is possible to make modifications, deletions accordingto the contents, and the invention is not limited to these examples.

FIG. 9 illustrates a method for suspending the co-existence working modeafter establishing the co-existence working mode according to anembodiment of the disclosure.

As shown in FIG. 9, suspending of the co-existence working mode istriggered by the base station. After establish the co-existence workingmode successfully, the base station may judge to suspend theco-existence working mode according to the variation of systemoperation. For example, when the user equipment needs to perform animportant operation in one or more periods (such as the base stationtriggers the user equipment to make measurements, or the user equipmentneeds to switch the cell), in order to prevent the interfering systemfrom influencing the measurements, there is a need to suspend the secondcommunication with the interfering system. The suspending may beperformed one time or periodically. In this case, the base station maytransmit a suspending command to the user equipment (step 921) toinstruct the user equipment to suspend the co-existence working mode(that is, request the user equipment to suspend the second communicationwith device of the interfering system). The base station may instructthe user equipment to suspend the co-existence working mode one time,and also may instruct the user equipment to suspend the co-existenceworking mode periodically multiple times in a certain period.

After receiving the suspending command from the base station, the userequipment may suspend the co-existence working mode at a specified timeaccording to instruction of the base station, i.e., suspend the secondcommunication with device of the interfering system (step 922), andtransmit a suspending completing message to the base station (step 923)to inform the base station whether the co-existence working mode hasbeen suspended successfully.

The suspending command may include one or more of the followinginformation:

-   -   start delay of suspending or start time of suspending;    -   suspending cycle;    -   suspending time (i.e., time length of suspending the        co-existence working mode in a suspending cycle);    -   start delay of restarting or start time of restarting.

In an example, the base station may encapsulate information indicatingthe user equipment to suspend the co-existence working mode periodicallyinto the suspending command and transmit the information to the userequipment. For example, the information may be a suspended cycle. Theuser equipment may suspend the second communication periodicallyaccording to instruction of the base station, i.e., suspend theco-existence working mode periodically.

In another example, the suspending command may contain start time orstart delay of suspending the co-existence working mode. The userequipment may determine validation time of suspending according to thestart delay in the suspending command and the time of receiving aconfirmation signal (such as ACK signal) indicating that the basestation has received the suspending completing message transmitted bythe user equipment successfully, and the base station may determine thevalidation time of suspending according to the start delay in thesuspending command and the time of transmitting the confirmation signal(such as ACK signal) indicating that the base station has received thesuspending completing message successfully.

In another example, in addition to the start time of suspending theco-existence working mode, the suspending command may also containrestart time or restart delay of restarting the co-existence workingmode. The user equipment may restart the co-existence working mode atthe restart time specified in the suspending command (not shown). Theuser equipment may determine the validation time of restart according tothe restart delay in the suspending command and the time of receivingthe confirmation signal (such as ACK signal) indicating that the basestation has received the suspending completing message transmitted bythe user equipment successfully, and the base station may determine thevalidation time of restart according to the restart delay in thesuspending command and the time of transmitting the confirmation signal(such as ACK signal) indicating that the base station has received thesuspending completing message successfully.

The suspending completing message may include one or more of thefollowing information:

-   -   information indicating whether the user equipment suspends the        co-existence working mode successfully;    -   failure reason of suspending failure.

In case of suspending failure, the base station may re-trigger the userequipment to suspend the co-existence working mode at an appropriatetime according to failure reason reported by the user equipment.

FIG. 10 illustrates another example of a method for restarting theco-existence working mode after suspending the co-existence workingmode. As shown in FIG. 10, after transmitting the suspending command,the base station may trigger restart of the co-existence working mode bytransmitting a restart command. After the co-existence working mode issuspended, when conditions permitting (such as the event which causesthe user equipment to suspend the co-existence working mode has beenterminated, for example, when the time of the user equipment completingcell measurements is earlier than expected and the measurements showthat there is no need to switch cell), the base station can transmit arestart command to the user equipment to instruct the user equipment torestart the co-existence working mode (step 1201). The restart commandincludes restart time or restart delay of restarting the co-existenceworking mode. After receiving the restart command, the user equipmentmay restart the co-existence working mode at a specified time accordingto the restart command (step 1022) and transmit a restart completingmessage to the base station (step 1023) which includes informationindicating whether the co-existence working mode has been restartedsuccessfully. The user equipment may determine validation time ofrestart according to the restart delay in the restart command and thetime of receiving a confirmation signal (such as ACK signal) indicatingthat the base station has received the restart completing messagetransmitted by the user equipment successfully, and the base station maydetermine the validation time of restart according to the restart delayin the restart command and the time of transmitting the confirmationsignal (such as ACK signal) indicating that the base station hasreceived the restart completing message successfully.

The restart completing message may include one or more of the followinginformation:

-   -   information indicating whether the co-existence working mode has        been restarted successfully;    -   failure reason of restart failure.

In case of restart failure, the base station may re-trigger the userequipment to restart the co-existence working mode at an appropriatetime according to failure reason reported by the user equipment.

Suspending process and restart process of the co-existence working modemay be conducted in RRC layer. In other words, each of the suspendingcommand, the restart command, the suspending completing command, and therestart completing message involved in the suspending process and therestart process may be a RRC command.

By taking LTE system which is the main communication system as anexample, a specific example of suspending and restarting theco-existence working mode by utilizing RRC reconfiguration flow RRCConnection Reconfiguration is described below.

For example, the suspending command may be carried by utilizingRRCConnectionReconfiguration message. For example, the suspendingcommand (indicated by RRC_CoEX_pending) may include one or more of thefollowing information:

RRC_CoEX_pending:

PendingMode:(One, Periodic)

PendingStartMode:(NextFrame,Delay)

PendingDelay:(sf0, sf2, sf4, sf5, sf10, . . . , sfP)

PendingPeriod:(sf2, sf4, sf5, sf 10, . . . , sf R)

PendingTime:(sf1, sf2, sf4, sf5, sf 10, . . . , sf S)

RestartDelay:(sf0, sf2, sf4, sf5, sf 10, . . . , sf U)

wherein, PendingMode:(One, Periodic) indicates the suspending modeselected by the base station for the user equipment, in which Oneindicates that the suspending is performed one time according to thesuspending command, Periodic indicates that the suspending is performedperiodically according to the suspending command.PendingStartMode:(NextFrame,Delay) indicates the method of determiningthe start time of suspending the co-existence working mode. If NextFrameis activated (for example, 1 or True), the co-existence working mode issuspended from the start position of next subframe after the time ofreceiving the confirmation signal (such as ACK signal) indicating thatthe base station has received the suspending completing messagetransmitted by the user equipment successfully. If Delay is activated(for example, 1 or True), the validation time of suspending iscalculated according to the time of receiving the confirmation signal(such as ACK signal) indicating that the base station has received thesuspending completing message transmitted by the user equipmentsuccessfully and the suspending delay indicated by Pending Delay.PendingDelay:(sf0, sf2, sf4, sf5, sf10, . . . , sfP) indicates the startdelay of suspending the co-existence working mode selected by the basestation for the user equipment, in which sf0, sf2, sf4, sf5, sf10, . . ., sfP (P≧1) indicate 0 subframe, 2 subframes, 4 subframes, 5 subframes,10 subframes, to P subframes, and the delay may be 0 subframe, 2subframes, 4 subframes, 5 subframes, 10 subframes, or P subframes.PendingPeriod:(sf2, sf4, sf5, sf 10, . . . , sf R) (R≧1) indicate thatthe suspending cycle selected by the base station for the user equipmentis 2 subframes, 4 subframes, 5 subframes, 10 subframes, or P subframeswhen the suspending is performed periodically. PendingTime:(sf1, sf2,sf4, sf5, sf 10, . . . , sf S) (S≧1) indicate that the suspending timein each suspending cycle selected by the base station for the userequipment is 1 subframes, 2 subframes, 4 subframes, 5 subframes, 10subframes, or S subframes when the suspending is performed periodically.It is noted that the suspending time starts from the beginning ofsuspending cycle. RestartDelay:(sf0, sf2, sf4, sf5, sf 10, . . . , sf U)(U≧1) indicates that the restart delay of the suspending mode selectedby the base station for the user equipment is 4 subframes, 5 subframes,10 subframes, or S subframes.

The suspending completing message fed back by the user equipment to thebase station may be carried by utilizingRRCConnectionReconfigurationComplete message.

The restart command may also be carried by utilizingRRCConnectionReconfigurationComplete message. For example, the restartcommand (indicated by RRC_CoEX_restart) may include one or more of thefollowing information:

RRC_CoEX_restart:

RestartStartMode:(NextFrame,Delay)

RestartDelay:(sf0, sf2, sf4, sf5, sf10, . . . , sfP)

wherein, RestartStartMode:(NextFrame,Delay) indicates the method ofdetermining the start time of restarting the co-existence working mode.If NextFrame is activated (for example 1 or True), the co-existenceworking mode is restarted from the start position of next subframe afterthe time of receiving the confirmation signal (such as ACK signal)indicating that the base station has received the restart completingmessage transmitted by the user equipment successfully. If Delay isactivated (for example, 1 or True), the start time of suspending iscalculated according to the time of receiving the confirmation signal(such as ACK signal) indicating that the base station has received therestart completing message transmitted by the user equipmentsuccessfully and the restart delay indicated by RestartDelay.RestartDelay:(sf0, sf2, sf4, sf5, sf10, . . . , sfP) indicates the startdelay of restarting the co-existence working mode selected by the basestation for the user equipment, in which sf0, sf2, sf4, sf5, sf10, . . ., sfP (P≧1) indicate 0 subframe, 2 subframes, 4 subframes, 5 subframes,10 subframes, to P subframes respectively, and the delay may be 0subframe, 2 subframes, 4 subframes, 5 subframes, 10 subframes, or Psubframes.

The restart completing message fed back by the user equipment to thebase station may also be carried by utilizingRRCConnectionReconfigurationComplete message.

A specific example of suspending and restarting the co-existence workingmode with the added new RRC flows will be given below.

For example, the suspending command may be carried by utilizing theadded new RRC message. For example, the suspending command (indicated byRRC_CoEX_pending) may include one or more of the following information:

RRC_CoEX_pending:

PendingMode:(One, Periodic)

PendingStartMode:(NextFrame,Delay)

PendingDelay:(sf0, sf2, sf4, sf5, sf10, . . . , sfP)

PendingPeriod:(sf2, sf4, sf5, sf 10, . . . , sf R)

PendingTime:(sf1, sf2, sf4, sf5, sf 10, . . . , sf S)

RestartDelay:(sf0, sf2, sf4, sf5, sf 10, . . . , sf U)

each of which is similar to that in the previous example and descriptionthereof will not be repeated.

The suspending completing message may also be carried by the added newRRC signaling. For example, the message (indicated by RRC_CoEX_pendingcomplete_response) may include one or more of the following information:

RRC_CoEX_pending complete_response:

State:(success, fail)

FailReason:(reason0, reason1, . . . )

wherein, State:(success, fail) indicates whether the co-existenceworking mode has been suspended successfully; and FailReason:(reason0,reason1, . . . ) indicates reason of suspending failure.

The restart command may also be carried by the added new RRC signaling.For example, the restart command (indicated by RRC_CoEX_restart) mayinclude one or more of the following information:

RRC_CoEX_restart:

RestartStartMode:(NextFrame,Delay)

RestartDelay:(sf0, sf2, sf4, sf5, sf10, . . . , sfP)

each of which is similar to that in the previous example and descriptionthereof will not be repeated.

The restart completing message may also be carried by the added new RRCsignaling. For example, the message (indicated byRRC_CoEX_restart_complete_response) may include one or more of thefollowing information:

RRC_CoEX_restart_complete_response:

State:(success, fail)

FailReason:(reason0, reason1, . . . )

wherein, State:(success, fail) indicates whether the co-existenceworking mode has been restarted successfully; and FailReason:(reason0,reason1, . . . ) indicates reason of restart failure.

FIG. 11 illustrates a method for terminating the co-existence workingmode after establishing the co-existence working mode according to anembodiment of the disclosure.

As shown in FIG. 11, terminating of the co-existence working mode may betriggered by the user equipment. After the co-existence working mode isestablished successfully, if the user equipment no longer needs to workin the co-existence working mode (such as when the user equipmentdetects that the interfering system disappears), the user equipment maytransmit a mode terminating request to the base station to request toterminate the co-existence working mode (step 1121), thereby stop thesecond communication with the interfering system, and switch to a normalworking mode (i.e., non co-existence working mode). After receiving themode terminating request, the base station judges whether to allow theuser equipment to terminate the co-existence working mode according tooperation condition of the system (step 1122). If so, the base stationencapsulates information indicating to allow to terminate theco-existence working mode into a mode terminating response; and if not,encapsulates information indicating to reject to terminate theco-existence working mode into the mode terminating response, andtransmits the mode terminating response to the user equipment (step1123). The user equipment judges whether to terminate the co-existenceworking mode according to the mode terminating response. If the judgmentshows that the base station allows to terminate the co-existence workingmode, the co-existence working mode is terminated, i.e., switched to anormal working mode (time resource for the second communication isreleased). When terminating the co-existence working mode successfully,the user equipment may transmit a mode terminating completing message tothe base station, which includes information indicating that the userequipment has terminated the co-existence working mode successfully.When the user equipment does not terminate the co-existence working modesuccessfully, the mode terminating completing message transmitted to thebase station includes information indicating the user equipment does notterminated the co-existence working mode successfully. Alternatively, itmay also include information indicating reason of failure.

In an example, the mode terminating response may include informationindicating terminating time or delay. The user equipment and the basestation may calculates the time of terminating the co-existence workingmode according to the time or delay and the time when the user equipmenttransmits a confirmation signal indicating that the user equipment hasreceived the mode terminating response successfully.

FIG. 12 illustrates a method for terminating the co-existence workingmode after establishing the co-existence working mode according toanother embodiment of the disclosure.

In the method shown in FIG. 12, terminating of the co-existence workingmode is triggered by the base station. In some cases (for example, whenthe user equipment switches to target cell and the target cell finds outthat working frequencies of original interfering system and the targetcell can not interfere each other), the base station may transmit a modeterminating command to instruct the user equipment to terminate theco-existence working mode and enter a normal working mode (i.e., nonco-existence working mode). After receiving the mode terminatingcommand, the base station terminates the co-existence working modeaccording to the command, i.e., switched to a normal working mode (timeresource for the second communication is released). When terminating theco-existence working mode successfully, the user equipment may transmita mode terminating completing message to the base station, whichincludes information indicating that the user equipment has terminatedthe co-existence working mode successfully. When the user equipment doesnot terminate the co-existence working mode successfully, the modeterminating completing message transmitted to the base station includesinformation indicating the user equipment does not terminated theco-existence working mode successfully. Alternatively, it may alsoinclude information indicating reason of failure.

In an example, the base station may transmit the mode terminatingcommand to the user equipment during initial access. In an example, themode terminating command may include information indicating terminatingtime or delay, and the user equipment and the base station may calculatethe time of terminating the co-existence working mode according to thetime or delay and the time when the user equipment transmits aconfirmation signal indicating that the user equipment has received themode terminating command successfully.

The mode terminating command or the mode terminating responsetransmitted by the base station may include one or more bits. In anexample, the mode terminating command or the mode terminating responsemay include only one bit, the bit may be set to 1 or 0 to inform theuser equipment to terminate the co-existence working mode. If the modeterminating response is the information indicating to reject the userequipment to terminate the co-existence working mode, the bit may be setto 1 or 0 to indicate to reject request of the user equipment forterminating the co-existence working mode.

In another example, the mode terminating command or the mode terminatingresponse may include multiple bits. For example, they may contain one ormore of the following information:

-   -   information indicating the method of processing variation of        control mapping relation after terminating the co-existence        working mode;    -   information indicating how to process data in the co-existence        working mode which has been scheduled or transmission of which        has been started but has not been completed after terminating        the co-existence working mode (for example, which one of the        three methods for processing the remaining working mode        transition time data in previous working mode will be used);    -   length of the transition time.

If the mode terminating response is the information indicating to rejectrequest of the user equipment for terminating the co-existence workingmode, it may include information indicating the time after which theuser equipment can request to terminating the co-existence working modenext time. That is, the base station may encapsulate a waiting timeinterval after which the user equipment is allowed to request toterminating the co-existence working mode next time into the modeterminating response. After receiving the response, if the userequipment needs to transmit next request for terminating theco-existence working mode, the time interval shall be waited.

The terminating process of the co-existence working mode may beconducted in RRC layer. In other words, each of the mode terminatingrequest, mode terminating response, mode terminating command and thelike involved in the terminating process may be a RRC command.

By taking LTE system which is the main communication system as anexample, in a specific example, terminating of the co-existence workingmode may be achieved by utilizing existing RRC connectionreconfiguration (RRCConnectionReconfiguration) flow. In this example,the mode terminating request (indicated by RRC_CoEX_Termination_Request)may include the following information:

RRC_CoEX_Termination_Request:

COEXTerm_request:(1)

Wherein, COEXTerm_request indicates that the user equipment request toterminate the co-existence working mode.

If the base station allow the user equipment to terminate theco-existence working mode, the mode terminating response (indicated byRRC_CoEX_Termination) fed back to the user equipment may include one ormore of the following information (when the base station needs toterminate the co-existence working mode, the mode terminating commandmay also employ the following format):

RRC_CoEX_Termination:

GuardMode:(None, typeI, typeII, typeIII, typeIV)

GuardTime:(sf10, sf15, sf20, sf25, sf30, sf35, sf40)

wherein, Guard:(None, typeI, typeII, typeIII, typeIV) indicates methodof processing the transition time data from the co-existence workingmode to the normal working mode selected by the base station for theuser equipment, in which, None indicates that no action will be taken,even though after entering the normal working mode, signalingtransmission and data transmission which has not been completed in theco-existence working mode is still performed (according to theco-existence working mode) until they are transmitted correctly or HARQmaximum retransmission times is reached; typeI is type I which indicatesthat once entering the normal working mode, signaling and data in theco-existence working mode which has been scheduled but not beentransmitted or transmission of which has been started but not beencompleted is stopped until after entering the normal working mode, andthen they are rescheduled and retransmitted according to the normalworking mode; typeII is type II which indicates that once entering anormal working mode, transmission of signaling and data in theco-existence working mode which has been scheduled but not beentransmitted or transmission of which has been started but not beencompleted is resumed by utilizing timing relationship of the normalworking mode corresponding to that of the co-existence working mode(corresponding time resource); typeIII is type III which indicates thatduring transition from the co-existence working mode to the normalworking mode, a transition time is set, after which the user equipmentmay be allowed to enter the normal working mode. sf10, sf15, sf20, sf25,sf30, sf35, sf40 indicate 10 subframes, 15 subframes, 20 subframes, 30subframes, 35 subframes, 40 subframes respectively; and GuardTime:(sf10,sf15, sf20, sf25, sf30, sf35, sf40) indicates that length of thetransition time is 10 subframes, 15 subframes, 20 subframes, 30subframes, 35 subframes, or 40 subframes.

The mode terminating completing message fed back by the user equipmentto the base station may be carried by utilizing“RRCConnectionReconfigurationComplete”.

If the base station does not allow the user equipment to terminate theco-existence working mode, the mode terminating response includinginformation indicating to reject the user equipment to terminate theco-existence working mode may be carried by “RRCConnectionReject”.

In another specific example, terminating of the co-existence workingmode may be achieved by utilizing the added new RRC connection flow(RRC_CoEX_Termination). In this case, the mode terminating request(indicated by RRC_CoEX_Termination_Request) may include the followinginformation:

RRC_CoEX_Termination_Request:

COEXTerm_request:(1)

wherein, COEXTerm_request indicates that the user equipment requests toterminate the co-existence working mode.

If the base station allows the user equipment to terminate theco-existence working mode, the mode terminating response (indicated byRRC_CoEX_Termination) may include one or more of the followinginformation (when the base station needs to terminate the co-existenceworking mode, the mode terminating command may also employ the followingformat):

RRC_CoEX_Termination:

GuardMode:(None, typeI, typeII, typeIII, typeIV) GuardTime:(sf10, sf15,sf20, sf25, sf30, sf35, sf40)

each of which is similar to that in the previous example and descriptionthereof will not be repeated.

If the base station does not allow the user equipment to terminate theco-existence working mode, the mode terminating response (indicated byRRC_CoEX_termination_reject) may include the following information:

RRC_CoEX_termination_reject:

RetryDelayType:(sf10, sf15, sf20, sf25, sf30)

wherein, sf10, sf15, sf20, sf25, sf30 indicate 10 subframes, 15subframes, 20 subframes, and 30 subframes respectively; andRetryDelayType:(sf10, sf15, sf20, sf25, sf30) indicates that the minimumtime interval after which the next request for terminating theco-existence working mode is transmitted selected by the base stationfor the user equipment is 10 subframes, 15 subframes, 20 subframes, or30 subframes.

FIG. 13 is a schematic block diagram illustrating a base stationconfigured in a first communication system according to an embodiment ofthe disclosure.

As shown in FIG. 13, the base station 1310 may comprise a receivingdevice 1312, a control device 1314 and a transmitting device 1316.

The receiving device 1312 may receive various signaling and messagesfrom a user equipment of the first communication system. Thetransmitting device 1316 may transmit various commands and messages tothe user equipment. The control device 1314 may process the receivedvarious signaling and messages and generates signaling and messages tobe transmitted to the user equipment according to related information.

The base station 1310 may execute the methods in the methodembodiments/examples as described above with these devices.

For example, the base station 1310 may execute the method described withreference to FIG. 3. Specifically, the receiving device 1312 may receivea mode establishing request from the user equipment for establishing aco-existence working mode and transmit the request to the control device1314. The control device 1314 may encapsulate configuration informationindicating the co-existence working mode allowed to be utilized by theuser equipment into an establishing response message and output it tothe transmitting device 1316. The transmitting device 1316 transmits theestablishing response message to the user equipment. The receivingdevice 1312 may also receive information indicating whether the userequipment has configured the co-existence working mode fed back from theuser equipment.

For example, the base station 1310 may execute the method described withreference to FIG. 4. That is, the control device 1314 may also judgeswhether to allow the user equipment to enter the co-existence workingmode according to system information of the first communication system(such as operation condition of current cell (such as current usecondition of resources and the like) and/or working condition of theuser equipment (such as current service of the user equipment and thelike) and the like). If not, the control device 1314 encapsulatesinformation for rejecting the user equipment to enter the co-existenceworking mode into the establishing response message; and if yes,encapsulates information for allowing the user equipment to enter theco-existence working mode into the establishing response message.

In an example, the control device 1314 may also select a co-existenceworking mode for the user equipment according to system information ofthe first communication system (such as operation condition of currentcell (such as current use condition of resources and the like) and/ortype and/or service of the interfering system and the like) andencapsulate configuration information of the selected co-existenceworking mode into the establishing response message.

In case that the mode establishing request sent by the user equipmentincludes information indicating the co-existence working moderecommended by the user equipment, the control device 1314 may alsojudge whether to allow the user equipment to use the recommendedco-existence working mode. If so, information indicating to allow to usethe recommended co-existence working mode into the establishing responsemessage, otherwise, a co-existence working mode is selected according tosystem information of the first communication system (such as operationcondition of current cell (such as current use condition of resourcesand the like) and/or type and/or service of the interfering system andthe like).

The messages transmitted and received when the base station 1310establishes a co-existence working mode may employ the contents, formatsand transmission manners in the embodiments/examples as described abovewith reference to FIGS. 3-5 and 6A-6B. For example, the control device1314 may also encapsulate information indicating start delay of theco-existence working mode into the establishing response message. Forexample, the control device 1314 may also encapsulate a transition timeof the co-existence working mode into the establishing response message.For example, the establishing response message may be a RRC command. Forexample, in case that the user equipment is not allowed to enter aco-existence working mode, the control device 1314 may encapsulateinformation indicating the time interval after which the user equipmentis allowed to request to establish a co-existence working mode next timeinto the establishing response message. Herein description thereof willnot be repeated.

The base station 1310 may also execute the methods of re-configuring theco-existence working mode in the embodiments/examples as described abovewith reference to FIGS. 7 and 8.

In case that reconfiguration of the co-existence working mode istriggered by the user equipment, the receiving device 1312 may receive areconfiguration request transmitted from the user equipment forre-configuring the co-existence working mode, the control device 1314encapsulate reconfiguration information for re-configuring theco-existence working mode into a reconfiguration response message, andthe transmitting device 1316 transmits the reconfiguration responsemessage to the user equipment.

As an example, before generating the reconfiguration response message,the control device 1314 may also judge whether to allow the userequipment to re-configure the co-existence working mode. If not,information indicating to reject to re-configure the co-existenceworking mode is encapsulated into the reconfiguration response message;and if yes, reconfiguration information for re-configuring theco-existence working mode is encapsulated into the reconfigurationresponse message. As another example, the reconfiguration requesttransmitted by the user equipment includes information indicatingvariation of the second communication system, and the control device1314 may select the configuration information or the reconfigurationinformation of the co-existence working mode according to theinformation indicating variation of the second communication system. Inanother example, the reconfiguration request transmitted by the userequipment includes reconfiguration information for re-configuring theco-existence working mode recommended by the user equipment according tovariation of the second communication system (such as informationindicating configuration of the co-existence working mode reselected bythe user equipment according to variation of the second communicationsystem), and the control device 1314 may judge whether to allow the userequipment to use the configuration information or the reconfigurationinformation of the recommended co-existence working mode according tosystem information.

In case that reconfiguration of the co-existence working mode istriggered by the base station, the receiving device 1312 may encapsulatereconfiguration information for re-configuring the co-existence workingmode into a reconfiguration command which instructs the user equipmentto re-configure the co-existence working mode, and the transmittingdevice 1316 transmits the reconfiguration command to the user equipment.The receiving device may receive the acknowledge signal indicating thatthe reconfiguration has been completed fed back from the user equipment.

The messages transmitted and received when the base station 1310re-configures the co-existence working mode may employ the contents,formats and transmission manners in the embodiments/examples asdescribed above with reference to FIGS. 7 and 8, description of whichwill not be repeated herein.

The base station 1310 may also execute the methods of suspending andrestarting the co-existence working mode in the embodiments/examples asdescribed above with reference to FIGS. 9 and 10.

Specifically, the control device 1314 may generate a suspending commandfor instructing the user equipment to suspend the co-existence workingmode, which may include information indicating start time of suspendingthe co-existence working mode. The transmitting device 1316 transmitsthe suspending command to the user equipment, and the receiving device1312 receives a suspending completing message indicating that theco-existence working mode has been suspended fed back by the userequipment.

In an example, in addition to start time or start delay of suspendingthe co-existence working mode, the suspending command may includerestart time of restart delay of restarting the co-existence workingmode, and the user equipment can restart the co-existence working modeat a specified time according to the command (not shown) without thebase station 1310 (the control device 1314) generating and transmittinga restart command.

In another example, the control device 1314 may also generates a restartcommand for instructing the user equipment to restart the co-existenceworking mode, which includes information indicating restart time ofrestarting the co-existence working mode. The transmitting device 1316transmits the restart command to the user equipment. The receivingdevice 1312 receives a restart completing message indicating that theco-existence working mode has been restarted fed back by the userequipment.

The messages transmitted and received when the base station 1310suspends and restarts the co-existence working mode may employ thecontents, formats and transmission manners in the embodiments/examplesas described above with reference to FIGS. 9 and 10, description ofwhich will not be repeated herein.

The base station 1310 may also execute the method of terminating theco-existence working mode in the embodiments/examples as described abovewith reference to FIGS. 11 and 12.

In case that the user equipment terminates the co-existence workingmode, the receiving device 1312 may receive a mode terminating requestfor terminating the co-existence working mode transmitted by the userequipment. The control device 1314 judges whether to allow to terminatethe co-existence working mode according to system information, and thetransmitting device 1316 feeds back information indicating whether toallow to terminate the co-existence working mode to the user equipment.

In case that the base station terminates the co-existence working mode,the transmitting device 1316 transmits a mode terminating commandinstructing to terminate the co-existence working mode to the userequipment.

The messages transmitted and received when the base station 1310terminates the co-existence working mode may employ the contents,formats and transmission manners in the embodiments/examples asdescribed above with reference to FIGS. 11 and 12, description of whichwill not be repeated herein.

FIG. 14 is a schematic block diagram illustrating a user equipmentconfigured in a first communication system according to an embodiment ofthe disclosure.

As shown in FIG. 14, the base station 1420 may comprise a receivingdevice 1421, an information processing device 1425 and a transmittingdevice 1427.

The receiving device 1421 may receive various signaling and messagesfrom a base station of the first communication system. The transmittingdevice 1427 may transmit various commands and messages to the basestation. The information processing device 1425 may process the receivedvarious signaling and messages and generates signaling and messages tobe transmitted to the base station according to related information.

The user equipment 1420 may execute the methods in the methodembodiments/examples as described above with these devices.

For example, the user equipment 1420 may execute the method describedwith reference to FIG. 2. Specifically, the information processingdevice 1425 may generate a mode establishing request for establishing aco-existence working mode. The transmitting device 1427 may transmit themode establishing request to the base station, and the receiving devicemay receive an establishing response message fed back by the basestation, which includes configuration information indicating theco-existence working mode allowed by the base station to be utilized bythe user equipment. The information processing device 1425 may configurethe co-existence working mode according to the configuration informationin the response message to start the co-existence working mode. Afterconfiguring the co-existence working mode, the transmitting device 1427may also feed back information indicating whether the user equipment hasconfigured the co-existence working mode to the base station.

For example, the user equipment 1420 may execute the method describedwith reference to FIG. 5. Specifically, after the receiving device 1421receives the establishing response message, the information processingdevice 1425 may first judge whether the base station allows the userequipment to enter the co-existence working mode according to theestablishing response message. If so, the information processing device1425 may configure the co-existence working mode according to theconfiguration information in the response message to start theco-existence working mode; otherwise, do not start the co-existenceworking mode.

After the information processing device 1425 configures the co-existenceworking mode, the transmitting device 1427 may also feed backinformation indicating that configuration of the co-existence workingmode has been completed to the base station.

As an example, the information processing device 1425 may also select aco-existence working mode according to the detected interfering system(the second communication system) and encapsulate information indicatingthe selected co-existence working mode into the mode establishingrequest. As another example, the information processing device 1425 mayalso encapsulate information indicating type and/or service of thesecond communication system into the mode establishing request. In someexamples, the transmitting device may transmit the mode establishingrequest with PUCCH, MAC layer, or RRC layer. When the establishingresponse information fed back by the base station includes informationindicating start delay of the co-existence working mode, the informationprocessing device 1425 may also determine start time of the co-existenceworking mode according to the start delay. When the establishingresponse information received by the receiving device 1421 also includesinformation indicating transition time of the co-existence working mode,the information processing device 1425 may obtain the transition time byanalyzing the information and judge whether there is a need fortransition time accordingly. In this way, the user equipment 1420continues to transmit data by utilizing previous working mode during thetransition time after entering the co-existence working mode andcontinues to transmit data by utilizing the co-existence working modeduring the transition time after terminating the co-existence workingmode. The messages transmitted and received when the user equipment 1420establishes a co-existence working mode may employ the contents, formatsand transmission manners in the embodiments/examples as described abovewith reference to FIGS. 3-5 and 6A-6B. Herein description thereof willnot be repeated.

The user equipment 1420 may also execute the methods of re-configuringthe co-existence working mode in the embodiments/examples as describedabove with reference to FIGS. 7 and 8.

In case that reconfiguration of the co-existence working mode istriggered by the user equipment 1420, the information processing device1425 may generate a reconfiguration request for re-configuring theco-existence working mode, and the transmitting device 1427 transmitsthe reconfiguration request to the base station. The receiving device1421 receives a reconfiguration response message includingreconfiguration information for re-configuring the co-existence workingmode fed back by the base station, and the information processing device1425 changes the co-existence working mode according to thereconfiguration information.

As an example, before generating the reconfiguration response message,the control device 1314 may also judge whether to allow the userequipment to re-configure the co-existence working mode. If not,information indicating to reject to re-configure the co-existenceworking mode is encapsulated into the reconfiguration response message;and if yes, reconfiguration information for re-configuring theco-existence working mode is encapsulated into the reconfigurationresponse message. As another example, the reconfiguration requesttransmitted by the user equipment includes information indicatingvariation of the second communication system, and the control device1314 may select reconfiguration information for re-configuring theco-existence working mode according to the information indicatingvariation of the second communication system (such as configurationinformation of the co-existence working mode reselected according tovariation of the second communication system). In another example, thereconfiguration request transmitted by the user equipment includesconfiguration information or reconfiguration information of theco-existence working mode which is recommended by the user equipmentaccording to variation of the second communication system, and thecontrol device 1314 may judge whether to allow the user equipment to usethe configuration information or the reconfiguration information of therecommended co-existence working mode according to system information.

In an example, after the receiving device 1421 receives thereconfiguration response message, the information processing device 1425may first judge whether the base station allows to re-configure theco-existence working mode according to the reconfiguration responsemessage. If so, the co-existence working mode is re-configured,otherwise, is not re-configured.

In another example, the information processing device 1425 may alsoencapsulate the information indicating variation of the secondcommunication system into the reconfiguration request. In anotherexample, the information processing device 1425 may also reselectconfiguration information of the co-existence working mode according tovariation of the second communication system, and encapsulate theinformation into the reconfiguration request.

In case that reconfiguration of the co-existence working mode istriggered by the base station, the receiving device 1421 receives areconfiguration command for instructing to re-configure the co-existenceworking mode transmitted from the base station, which includesreconfiguration information for re-configuring the co-existence workingmode. The information processing device 1425 re-configures theco-existence working mode according to the reconfiguration information,and the transmitting device feeds back a acknowledge signal indicatingthat the reconfiguration has been completed to the base station aftercompleting the reconfiguration.

The messages transmitted and received when the user equipment 1420re-configures the co-existence working mode may employ the contents,formats and transmission manners in the embodiments/examples asdescribed above with reference to FIGS. 7 and 8, description of whichwill not be repeated herein.

The user equipment 1420 may also execute the methods of suspending andrestarting the co-existence working mode in the embodiments/examples asdescribed above with reference to FIGS. 9 and 10.

Specifically, the receiving device 1421 receives a suspending commandfor instruct to suspend the co-existence working mode transmitted fromthe base station, which includes information indicating start time ofsuspending the co-existence working mode. The information processingdevice suspends the co-existence working mode according to thesuspending command.

In an example, in addition to start time or start delay of suspendingthe co-existence working mode, the suspending command may includerestart time of restart delay of restarting the co-existence workingmode, and the user equipment 1420 (the information processing device1425) can restart the co-existence working mode at a specified timeaccording to the command without the base station 1310 generating andtransmitting a restart command.

In another example, the receiving device 1421 receives a restart commandfor instructing to restart the co-existence working mode transmittedfrom the base station, which includes information indicating restarttime of restarting the co-existence working mode. The informationprocessing device 1425 restarts the co-existence working mode accordingto the restart command.

After the suspending operation is completed, the transmitting device1427 may feed back a suspending completing message indicating that theco-existence working mode has been suspended to the base station. Afterthe restart operation is completed, the transmitting device 1427 mayfeed back a restart completing message indicating that the co-existenceworking mode has been restarted to the base station.

The messages transmitted and received when the user equipment 1420suspends and restarts the co-existence working mode may employ thecontents, formats and transmission manners in the embodiments/examplesas described above with reference to FIGS. 9 and 10, description ofwhich will not be repeated herein.

The user equipment 1420 may also execute the method of terminating theco-existence working mode in the embodiments/examples as described abovewith reference to FIGS. 11 and 12.

In case that the user equipment 1420 trigger the flow for terminatingthe co-existence working mode, the information processing device 1425may generate a mode terminating request for terminating the co-existenceworking mode, and the transmitting device 1427 transmits the modeterminating request to the base station. The receiving device 1421receives information indicating whether to allow to terminate theco-existence working mode fed back from the base station. Theinformation processing device 1425 judges whether to terminate theco-existence working mode according to the information fed back by thebase station.

In case that the base station trigger the flow for terminating theco-existence working mode, the receiving device 1421 receives a modeterminating command instructing to terminate the co-existence workingmode transmitted from the base station. The information processingdevice 1425 terminates the co-existence working mode according to theterminating command.

The messages transmitted and received when the user equipment 1420terminates the co-existence working mode may employ the contents,formats and transmission manners in the embodiments/examples asdescribed above with reference to FIGS. 11 and 12, description of whichwill not be repeated herein.

The embodiments of the disclosure also provide a communication systemcomprising the base station and the user equipment as described above.

It shall be understood by those skilled in the art that variousembodiments and/or examples described herein are exemplary and notexhaustive, and the disclosure is not limited to these embodimentsand/or examples.

In above embodiments and/or examples, the first communication system andthe second communication system refer to different communication systemsexisting in a user equipment. For example, the first communicationsystem may be a LTE system, a LTE-A system, or other communicationsystem, while the second communication system (the interfering system)may be a Bluetooth system, a WLAN system of a GPS system configured inthe user equipment. Herein not all the cases will be listed.

In the specification, terms “first”, “second”, etc. are only fordistinguishing the features described by them literally in order toillustrate the disclosure in a manner of clarity. Therefore, it shallnot deem them to have any limited meaning.

As an example, various steps of the above methods and various componentmodules and/or units of the above apparatuses may be configured bysoftware, firmware, hardware or their combination thereof in a basestation (such as eNodeB) or a terminal node of the first communicationsystem, and are parts of the corresponding apparatuses of the basestation or the terminal node. Specific means and manners that may beused by the configuration are well known to those skilled in the art,and details are omitted here.

It is readily understood that system comprising the apparatuses of theabove embodiments shall also fall in the scope of protection of thedisclosure.

As an example, in case of implementing by software or firmware, programconstituting the software may be mounted to a computer having adedicated hardware structure from a storage medium or network (forexample, the universal computer 1500 as illustrated in FIG. 15), whenthe computer is mounted with various program, the computer may executevarious functions.

In FIG. 15, a central processing unit (CPU) 1501 perform variousprocesses according to the program stored in the Read-Only Memory (ROM)1502 or programs loaded from the storage unit 1508 to the Random AccessMemory (RAM) 1503. In the RAM 1503, store also data required when theCPU 1501 performs various processes. CPU 1501, ROM 1502 and RAM 1503 areconnected from one to another via bus 1504. Input/output interface 1505is also connected to the bus 1504.

The following components are connected to the input/output interface1505: input unit 1506 (including keyboard, mouse, etc.); output unit1507 (including display, such as cathode ray tube (CRT), liquid crystaldisplay (LCD), etc., and speakers and so on); storage unit 1508(including hard disc, etc.); and communication part 1509 (includingnetwork interface cards such as LAN cards, modems and so on). Thecommunication unit 1509 performs communication process via network likethe internet. According to requirements, drive 1510 is also connected tothe input/output interface 1505. Detachable medium 1511 such as magneticdisc, CD, magneto-optical disc, semiconductor memory, and so on isinstalled on the drive 1510 based on requirements, such that thecomputer program read out therefrom is installed in the storage unit1508 based on requirements.

In case of implementing the above processes by software, programsconstituting the software are installed from a network like the Internetor from a storage medium like the detachable medium 1511.

Those skilled in the art should be understood that such storage mediumis not limited to the detachable medium 1511 which is stored withprograms and distributes separate from the method to provide a user withprogram as illustrated in FIG. 15. The example of the detachable medium1511 includes disc (including floppy disc (registered marks)), CD(including CD read only memory (CD-ROM) and digital versatile disc(DVD)), magneto-optical disc (including mini-disc (MD) (registeredmarks)) and semiconductor memory. Alternatively, the storage medium maybe ROM 1502, or hard disc included in the storage unit 1508 in which aprogram is stored and the program is distributed to a user with themethod including the same.

The disclosure also provides a program product storing machine readableinstruction code. When read and executed by a machine, the instructioncode may implement the method according to the embodiment of thedisclosure.

Correspondingly, a storage medium for carrying the program code storingthe machine readable instruction code is also included in thedisclosure. The storage medium includes, but not limited to, Floppydisk, CD-ROMs, magneto-optical disk, memory card, memory stick, etc.

In the above description of the specific embodiments, features describedand/or shown for one embodiment may be used in one or more otherembodiments in the same or similar manner, combined with features inother embodiments, or replaced with features in other embodiments.

In addition, the present disclosure includes but is not limited to thefollowing configurations.

Item 1. A method for solving the co-existence problem, comprising:

pre-configuring the information for co-existence working mode by a basestation of a first communication system for a user equipment,

receiving, by the base station of the first communication system fromthe user equipment in the first communication system, a modeestablishing request for indicating the co-existence problem experiencedby the user equipment and providing the assistance information forco-existence working mode in which the user equipment performs a firstcommunication with the base station and performs a second communicationwith an apparatus in a second communication system which is differentfrom the first communication system in a time-division manner.

Item 2. The method of item 1, further comprising:

encapsulating, by the base station, configuration information of aco-existence working mode allowed to be utilized by the user equipmentinto an establishing response message, and transmitting the establishingresponse message to the user equipment; and

receiving, by the base station, a message indicating whetherconfiguration of the co-existence working mode has been completed fedback from the user equipment.

Item 3. The method of item 2, further comprising:

judging, by the base station, whether to allow the user equipment toenter the co-existence working mode according to operation condition ofthe first communication system, and if no, encapsulating informationindicating to reject the user equipment to enter the co-existenceworking mode into the establishing response message.

Item 4. The method of item 1, further comprising:

selecting, by the base station, the co-existence working mode allowed tobe utilized by the user equipment according to operation condition ofthe first communication system.

Item 5. The method of item 4, wherein the mode establishing requestcomprises information indicating a co-existence working mode selected bythe user equipment, and the method further comprises:

judging, by the base station, whether to allow the user equipment toutilize the co-existence working mode selected by the user equipmentaccording to the operation condition of the first communication system,and if yes, encapsulating into the establishing response messageinformation indicating the co-existence working mode selected by theuser equipment is allowed to be utilized.

Item 6. A method for solving the co-existence problem, comprising:

receiving, by a user equipment of a first communication system from abase station in

the first communication system, the information for co-existence workingmode, transmitting, by the user equipment of the first communicationsystem to the base station in the first communication system, a modeestablishing request for indicating the co-existence problem experiencedby the user equipment and providing the assistance information forco-existence working mode in which the user equipment performs a firstcommunication with the base station and performs a second communicationwith an apparatus in a second communication system which is differentfrom the first communication system in a time-division manner.

Item 7. The method of item 6, further comprising:

receiving, by the user equipment from the base station, an establishingresponse message comprising configuration information of a co-existenceworking mode allowed to be utilized by the user equipment;

configuring the co-existence working mode according to the configurationinformation; and

feeding back, by the user equipment to the base station, a messageindicating whether configuration of the co-existence working mode hasbeen completed.

Item 8. The method of item 7, further comprising:

judging, by the user equipment, whether the base station allows the userequipment to enter the co-existence working mode according to theestablishing response message.

Item 9. The method of item 6, further comprising:

selecting, by the user equipment, a co-existence working mode accordingto the second communication system; and

encapsulating information of the selected co-existence working mode intothe mode establishing request.

Item 10. The method of item 6, further comprising:

encapsulating, by the user equipment, information indicating a typeand/or service of the second communication system into the modeestablishing request.

Item 11. A base station, configured in a first communication system,comprising:

a control device, configured to pre-configure the information forco-existence working mode;

a receiving device, configured to receive, from a user equipment in thefirst communication system, a mode establishing request for indicatingthe co-existence problem experienced by the user equipment and providingthe assistance information for co-existence working mode in which theuser equipment performs a first communication with the base station andperforms a second communication with an apparatus in a secondcommunication system which is different from the first communicationsystem in a time-division manner.

Item 12. The base station of item 11, further comprising:

a control device, configured to encapsulate configuration information ofa co-existence working mode allowed to be utilized by the user equipmentinto an establishing response message; and

a transmitting device, configured to transmit the pre-configuredinformation for co-existence working mode and the establishing responsemessage to the user equipment,

wherein the receiving device is further configured to receive a messageindicating whether configuration of the co-existence working mode hasbeen completed fed back from the user equipment.

Item 13. The base station of item 12, wherein the control device isfurther configured to:

judge whether to allow the user equipment to enter the co-existenceworking mode according to operation condition of the first communicationsystem, and if no, encapsulate information indicating to reject the userequipment to enter the co-existence working mode into the establishingresponse message.

Item 14. The base station of item 11, wherein:

the receiving device is further configured to receive, from the userequipment, a reconfiguration request for requesting to re-configure theco-existence working mode,

the control device is further configured to encapsulate reconfigurationinformation for re-configuring the co-existence working mode into areconfiguration response message, and

the transmitting device is further configured to transmit thereconfiguration response message to the user equipment.

Item 15. The base station of item 11, wherein:

the control device is further configured to encapsulate reconfigurationinformation for re-configuring the co-existence working mode into areconfiguration command instructing the user equipment to re-configurethe co-existence working mode,

the transmitting device is further configured to transmit to the userequipment the reconfiguration command, and

the receiving device is further configured to receive a reply signalindicating whether reconfiguration of the co-existence working mode hasbeen completed fed back from the user equipment.

Item 16. A user equipment configured in a first communication system,comprising:

a receiving device, configured to receive the pre-configured informationfor co-existence working mode from a base station in the firstcommunication system;

an information processing device, configured to generate a modeestablishing request for indicating the co-existence problem experiencedby the user equipment and providing the assistance information forco-existence working mode in which the user equipment performs a firstcommunication with a base station of the first communication system andperforms a second communication with an apparatus in a secondcommunication system which is different from the first communicationsystem in a time-division manner;

a transmitting device, configured to transmit the mode establishingrequest to the base station in the first communication system.

Item 17. The user equipment of item 16, further comprising:

a receiving device, configured to receive, from the base station, anestablishing response message comprising configuration information of aco-existence working mode allowed to be utilized by the user equipment,

wherein the information processing device is further configured toconfigure the co-existence working mode according to the configurationinformation; and the transmitting device is further configured to feedback, to the base station, a message indicating whether configuration ofthe co-existence working mode has been completed.

Item 18. The user equipment of item 17, wherein the informationprocessing device is further configured to:

judge whether the base station allows the user equipment to enter theco-existence working mode according to the establishing responsemessage.

Item 19. The user equipment of item 16, wherein:

the information processing device is further configured to generate areconfiguration request for requesting to re-configure the co-existenceworking mode,

the transmitting device is further configured to transmit thereconfiguration request to the base station,

the receiving device is further configured to receive, from the basestation, a reconfiguration response message comprising reconfigurationinformation for re-configuring the co-existence working mode, and

the information processing device is further configured to re-configurethe co-existence working mode according to the reconfigurationinformation.

Item 20. A communication system, comprising the base station accordingto item 11 and the user equipment according to item 16.

It shall be emphasized that the technical term “comprise/include” isused here to refer to an existence of a feature, an element, a step or acomponent, without excluding existences or attachments of one or moreother features, elements, steps or components.

In addition, the method of embodiments of the disclosure is not limitedto be executed in the temporal order described in the Description orshown in the Figures, and may be executed in other temporal order inparallel or independently. Therefore, the execution order of the methoddescribed in the Description does not limit the technical range of thedisclosure.

Although embodiments of the disclosure have been described in detail bycombining with the Figure, it shall be understood that the embodimentsdescribed above are only used to illustrate the disclosure, and do notlimit the disclosure. For those skilled in the art, the embodiments maybe changed in various manners without departing from the substance andscope of the disclosure. Therefore, the scope of the disclosure is onlydefined by the attached claims and its equivalent meanings.

What is claimed is:
 1. A user equipment configured in a firstcommunication system, comprising: a receiver configured to receivepre-configured information for co-existence working mode from a basestation in the first communication system; a processor configured togenerate a mode establishing request for indicating a co-existenceproblem experienced by the user equipment and providing assistanceinformation for co-existence working mode in which the user equipmentperforms a first communication with the base station of the firstcommunication system and performs a second communication with anapparatus in a second communication system which is different from thefirst communication system; and a transmitter configured to transmit themode establishing request to the base station in the first communicationsystem; and wherein the receiver is further configured to receive, fromthe base station, an establishing response message comprisingconfiguration information of a co-existence working mode allowed to beutilized by the user equipment, the processor is further configured toconfigure the co-existence working mode according to the configurationinformation, and the transmitter is further configured to feedback, tothe base station, a message indicating whether configuration of theco-existence working mode has been completed, and wherein thepre-configured information of the co-existence working mode indicateswhether the user equipment can deny uplink transmission of the firstcommunication system.
 2. The user equipment of claim 1, wherein theprocessor is further configured to: judge whether the base stationallows the user equipment to enter the co-existence working modeaccording to the establishing response message.
 3. The user equipment ofclaim 1, wherein: the processor is further configured to generate areconfiguration request for requesting to re-configure the co-existenceworking mode, the transmitter is further configured to transmit thereconfiguration request to the base station, the receiver is furtherconfigured to receive, from the base station, a reconfiguration responsemessage comprising reconfiguration information for re-configuring theco-existence working mode, and the processor is further configured tore-configure the co-existence working mode according to thereconfiguration information.
 4. A communication system, comprising: abase station including a control device, configured to pre-configureinformation for co-existence working mode, and a receiving device,configured to receive, from a user equipment in a first communicationsystem, a mode establishing request for indicating a co-existenceproblem experienced by the user equipment and providing assistanceinformation for co-existence working mode in which the user equipmentperforms a first communication with the base station and performs asecond communication with an apparatus in a second communication systemwhich is different from the first communication system, a controldevice, configured to encapsulate configuration information of aco-existence working mode allowed to be utilized by the user equipmentinto an establishing response message, and a transmitting device,configured to transmit the pre-configured information for co-existenceworking mode and the establishing response message to the userequipment, wherein the receiving device is further configured to receivea message indicating whether configuration of the co-existence workingmode has been completed fed back from the user equipment, and whereinthe pre-configured information of the co-existence working modeindicates whether the user equipment can deny uplink transmission of thefirst communication system; and the user equipment including a receivingdevice, configured to receive the pre-configured information forco-existence working mode from the base station in the firstcommunication system, a information processing device, configured togenerate a mode establishing request for indicating the co-existenceproblem experienced by the user equipment and providing the assistanceinformation for the co-existence working mode in which the userequipment performs a first communication with a base station of thefirst communication system and performs a second communication with theapparatus in the second communication system which is different from thefirst communication system, and a transmitting device, configured totransmit the mode establishing request to the base station in the firstcommunication system.